EP1522633B1 - Road milling machine with steering device - Google Patents

Road milling machine with steering device Download PDF

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Publication number
EP1522633B1
EP1522633B1 EP04022746A EP04022746A EP1522633B1 EP 1522633 B1 EP1522633 B1 EP 1522633B1 EP 04022746 A EP04022746 A EP 04022746A EP 04022746 A EP04022746 A EP 04022746A EP 1522633 B1 EP1522633 B1 EP 1522633B1
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EP
European Patent Office
Prior art keywords
console
milling machine
chassis
road milling
driver
Prior art date
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Not-in-force
Application number
EP04022746A
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German (de)
French (fr)
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EP1522633A3 (en
EP1522633A2 (en
Inventor
Olaf Gaertner
Dieter Bungarten
Roland Lull
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Wirtgen GmbH
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Wirtgen GmbH
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Publication of EP1522633A2 publication Critical patent/EP1522633A2/en
Publication of EP1522633A3 publication Critical patent/EP1522633A3/en
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Publication of EP1522633B1 publication Critical patent/EP1522633B1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/30—Cabin details

Definitions

  • the present invention relates to a road milling machine with a driver's station having a bottom plate, and a steering device attached to the chassis of the construction machine, which has a console on which a steering wheel is arranged.
  • Road milling machines are known, on whose chassis a driver's station is provided.
  • the driver's cab provides space for the vehicle driver by creating a floor plate on which the driver stands.
  • driver's cabs are used, on the floor slab of which a seat opportunity is additionally provided for the vehicle driver so that the driver can also sit down for a longer processing of the traffic area.
  • the steering device of the known road milling machines generally comprises a console on which the steering wheel is arranged.
  • the console is arranged on a side facing the driver's cab, running closed side of the chassis.
  • the steering itself is usually done via a hydraulic system.
  • the known road milling machines have the disadvantage that monitoring or observation of the traffic area to be processed from the driver's station is made more difficult.
  • the milling tool is arranged in the direction of travel in front of the driver's station.
  • the milling tool is partially visible from the driver's cab by a recess in the bottom plate.
  • the disadvantage is that the view of the console with the instruments and the upwardly extending from the bottom plate steering column is obstructed. In addition, the legroom of the driver is also hindered.
  • a cold milling machine which has a arranged at the rear of the mill driver's cab with a driver's seat and a bottom plate.
  • a console In front of the driver's seat, a console is mounted above the bottom plate on the chassis of the milling machine, on which a steering wheel is arranged.
  • the driver's seat and the steering wheel can be adjusted to the size of the driver of the milling machine in order to always have the milling edge in view.
  • the steering device of the known milling machine is designed as a hydraulic steering, the controls (hydraulic unit) are arranged within the chassis.
  • the US-A-3,362,247 describes the driver's station of an agricultural machine comprising a driver's seat and a height-adjustable steering wheel.
  • the steering wheel sits on a steering housing that receives the hydraulics of the steering.
  • the steering housing is connected via a bent steering column, which is oriented substantially horizontally, with a housing which receives the operating elements. By turning the bent steering column, the steering wheel can be adjusted in height.
  • the present invention is based on the object to provide a road milling machine, which allows a simple and convenient observation of the traffic area to be processed from the driver's cab.
  • the road milling machine has a driver's station, which is provided with a bottom plate. On this floor plate, the driver can stand or even sit, provided that a corresponding seating is mounted on the bottom plate.
  • a steering device is attached, which serves the steering, for example, a wheel, the wheels of an axle or the crawler tracks on which a road milling machine is usually supported.
  • the steering device comprises a console and a steering wheel arranged thereon. Under a steering wheel in this context, any hand-operated steering means to understand.
  • the console is attached at one end to the side of the chassis. The term laterally refers to the direction of travel.
  • the console extends above the bottom plate to form an opening between the bottom plate and the console to the side.
  • the console is located higher than the bottom plate. An immediate arrangement of the console over the bottom plate is not required.
  • the other end of the console forms a free end.
  • the driver With the opening remaining underneath the console, the driver has the opportunity to observe the traffic area to be processed without having to lean to the side, as is the case with conventional road milling machines, where the side of the chassis obstructs the view at which the Console is arranged.
  • the one-sided mounting of the console causes a free end of the console is formed, which does not have to be supported down against the chassis, so that no visibility obstructing support means is required at this end.
  • the opening below the console ensures the driver greater legroom.
  • the recess of the floor plate, by which the driver recognizes the road surface, can either extend only over a part or the entire length of the floor plate.
  • the console of the road milling machine according to the invention need not be arranged laterally on the outermost side wall of the chassis, but can also be arranged offset inwards in the direction of travel behind a part of the chassis.
  • the console is offset inwards, wherein the chassis is recessed in the direction of travel before the opening so that the pavement is visible.
  • the steering wheel can be pivoted about the longitudinal axis of the console. This allows the position of the steering wheel on it be adjusted whether the driver operates the road milling machine standing or sitting.
  • the steering wheel can be pivoted together with the console.
  • further operating and / or display elements are arranged on the console, the relative arrangement is maintained to the steering wheel, so that the operation is simplified.
  • the steering wheel can be locked in different pivot positions.
  • Such a lock can allow a gradual or continuous adjustment of the pivot position.
  • the road milling machine according to the invention has a hydraulic steering, wherein the controls of the hydraulic steering are arranged within the console and can be operated via the steering wheel.
  • the road milling machine is designed such that the console is releasably attached to the chassis.
  • the road milling machine 2 has a chassis 4, which in the present embodiment is supported on three wheels 6, 6, 8, the two rear wheels 6, 6 (only one being in FIG Fig. 1 seen) laterally in the region of the rear and the front wheel 8 is arranged centrally in the region of the front side of the road milling machine 2.
  • the rear wheels 6, 6 are height-adjustable by means of a hydraulic, wherein the steering of the road milling machine 2 via the front wheel 8 takes place, which can be rotated about a vertical axis a.
  • a road milling machine 2 in place of the wheels 6, 6, 8 are also worn by crawler tracks.
  • the number of wheels or crawlers provided may vary.
  • At least one drive motor for a milling drum and the wheels 6, 6, 8 and a hydraulic system are also provided. Furthermore, the Provided known from the prior art additional units, which should be waived their representation for reasons of clarity.
  • the driver's station 10 is provided at the top in the rear of the road milling machine 2, where, inter alia, a seat 12 for the driver is located, which is arranged on a base plate 14.
  • the road milling machine 2 can be operated sitting by the driver both on the bottom plate 14 and sitting on the seat 12.
  • roller housing 16 Below the driver's station 10 is a roller housing 16.
  • the roller housing 16 is a downward, ie in the direction of the road surface 18, open housing in which a milling drum 20 is arranged, wherein the longitudinal axis of the milling drum 20 extends transversely to the direction of travel, in Fig. 1 is shown on the arrow b.
  • the milling drum 20 projects out of the roller housing 16 downwards in the direction of the road surface 18.
  • a height-adjustable stripping device 22 is provided at the rear end of the roller housing 16 in the direction of travel b.
  • a transport device 24 is provided, via which the milled milled material can be fed to an accompanying truck with a corresponding loading area (not shown). Since the milled material is fed to the truck via the rear of the road milling machine 2, it is a so-called rear-loading road milling machine.
  • the road milling machine can also be a so-called front loader.
  • a steering device 26 is furthermore provided which comprises a bracket 28 and a steering wheel 30 arranged on the bracket 28.
  • the console 28 is attached at one end 32 laterally on the chassis 4, whereas the other end of the bracket 28 is formed as a free end 34.
  • the bracket 28 extends from its fixed end 32 transversely to the direction b to the side, the console above the bottom plate 14th runs, so that an opening 36 between the bottom plate 14 and the bracket 28 is formed.
  • the bracket 28 is attached to an inwardly offset back side wall of the chassis 4.
  • the road milling machine 2 and the chassis 4 of the road milling machine 2 is recessed in the illustrated embodiment in the direction of travel b in front of the opening 36.
  • the steering wheel 30 can be pivoted about the longitudinal axis 40 of the bracket 28, advantageously the bracket 28 is rotated together with the steering wheel 30 about the axis 40. This makes it possible to optimally adjust the position of the steering wheel, whether the driver is standing or sitting. An adaptation to the size of the driver is thus possible. In special cases, the pivotability of the steering wheel but also advantageous insofar as the view is released from different angles by pivoting the steering wheel. For illustration, in Fig. 1 different angles of the driver by arrows c, d, e, f marked. The arrows show that, depending on the position of the steering wheel, one or the other viewing direction is released. For the driver, it may be useful for certain driving situations to pivot the steering wheel regardless of the ergonomic aspects, so that the view of the roadway is not obscured by the steering wheel.
  • the steering wheel 30 can be locked in different pivot positions.
  • the bracket 28 is releasably attached to the chassis 4, wherein the bracket 28 can be plugged onto the chassis 4 for easy mounting and secured by means of a rotary movement about the longitudinal axis 40 of the bracket 28. How the above features can be realized by a particular embodiment of bracket 28 and chassis 4 will be explained in the following with reference to FIGS Fig. 2 to 5 described.
  • the bracket 28 has a substantially cylindrical housing 42, wherein the wall of the housing 42 is formed in a region as a flat surface 44 to which the steering wheel 30 is attached, as shown in the Fig. 2 to 5 is omitted for clarity.
  • the housing is open to ensure easy accessibility to the control means (not shown) of the hydraulic steering. Nevertheless, the console 28 should be protected by means of a cover 46, which is indicated by the dashed line in FIG Fig. 3 is shown.
  • the wall of the housing 42 has on the flat surface 44 a plurality of openings 61 for mounting in Fig. 2 not shown operating and / or display elements 62, 63 which are arranged at the top of the console next to the steering wheel ( Fig. 1a ).
  • the supply lines for the operating and display elements, not shown in the figures, are guided together with the hydraulic lines, also not shown, along the longitudinal axis 40 through the tubular axis 54 in the chassis-side cavity 56. Since the lines have a sufficient length, the lines can rotate when pivoting the console, without being damaged.
  • the console 28 has a connecting plate 48, in particular in Fig. 5 is shown in more detail.
  • the connecting plate 48 has a connection opening 50, which is elongated.
  • a plurality of locking holes 52 in the Connection plate 50 is provided, which all have the same distance from the center 55 of the connecting plate 50.
  • Chassis-side a fixed, tubular axis 54 is provided, which opens into a chassis-side cavity 56 through which hydraulic lines can extend.
  • a chassis-side cavity 56 On the axis 54, two flanges 57, 58 are provided, wherein the console facing flange 58 is formed substantially elongated and in a certain pivotal position of the connecting plate 48 can be passed through the connection opening 50.
  • the chassis 4 facing the flange 57 is spaced from the flange 58, so that between them an outwardly facing, annular groove 60 is formed.
  • sliding or sealing means 66 in the form of sliding or sealing rings are provided on the mutually facing sides of the flanges 57, 58.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Signs Or Road Markings (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Body Structure For Vehicles (AREA)
  • Road Paving Machines (AREA)
  • Instrument Panels (AREA)
  • Road Repair (AREA)

Description

Die vorliegende Erfindung betrifft eine Straßenfräsmaschine mit einem Fahrerstand, der eine Bodenplatte aufweist, und einer am Chassis der Baumaschine befestigten Lenkeinrichtung, die eine Konsole aufweist, auf der ein Lenkrad angeordnet ist.The present invention relates to a road milling machine with a driver's station having a bottom plate, and a steering device attached to the chassis of the construction machine, which has a console on which a steering wheel is arranged.

Es sind Straßenfräsmaschinen bekannt, an deren Chassis ein Fahrerstand vorgesehen ist. Der Fahrerstand bietet Platz für den Fahrzeugführer, indem eine Bodenplatte geschaffen wird, auf der der Fahrzeugführer steht. Zum Großteil kommen Fahrerstände zum Einsatz, auf deren Bodenplatte zusätzlich eine Sitzgelegenheit für den Fahrzeugführer vorgesehen ist, so dass sich dieser bei einer längeren Bearbeitung der Verkehrsfläche auch setzen kann.Road milling machines are known, on whose chassis a driver's station is provided. The driver's cab provides space for the vehicle driver by creating a floor plate on which the driver stands. For the most part, driver's cabs are used, on the floor slab of which a seat opportunity is additionally provided for the vehicle driver so that the driver can also sit down for a longer processing of the traffic area.

Die Lenkeinrichtung der bekannten Straßenfräsmaschinen umfasst im allgemeinen eine Konsole, auf der das Lenkrad angeordnet ist. Die Konsole ist dabei an einer dem Fahrerstand zugewandten, geschlossen ausgeführten Seite des Chassis angeordnet. Die Lenkung selbst erfolgt in der Regel über eine Hydraulik.The steering device of the known road milling machines generally comprises a console on which the steering wheel is arranged. The console is arranged on a side facing the driver's cab, running closed side of the chassis. The steering itself is usually done via a hydraulic system.

Bei der Bearbeitung einer Verkehrsfläche mit einer Straßenfräsmaschine ist es häufig erforderlich, dass der Fahrzeugführer die zu bearbeitende Verkehrsfläche genau im Auge behält. So muss die Straßenfräsmaschine beispielsweise häufig einer auf der Verkehrsfläche aufgebrachten Markierung folgen, so dass der Fahrzeugführer stets die genaue Fahrt der Straßenfräsmaschine entlang der Markierung überwachen muss. Auch bei der Bearbeitung einer Verkehrsfläche entlang eines Randsteines oder um einen Kanaldeckel herum muss der Fahrzeugführer stets die durch die genannten Hindernisse vorgegebene Grenze der zu bearbeitenden Verkehrsfläche überwachen.When processing a traffic area with a road milling machine, it is often necessary for the driver to keep a close eye on the traffic area to be processed. For example, the road milling machine often has to follow a mark applied to the traffic surface, so that the driver always has to monitor the exact travel of the road milling machine along the mark. Even when processing a traffic area along a curb or around a manhole cover around the driver must always monitor the predetermined by the aforementioned obstacles boundary of the traffic area to be processed.

Die bekannten Straßenfräsmaschinen haben den Nachteil, dass die Überwachung bzw. Beobachtung der zu bearbeitenden Verkehrsfläche vom Fahrerstand aus erschwert ist.The known road milling machines have the disadvantage that monitoring or observation of the traffic area to be processed from the driver's station is made more difficult.

Aus der US 3 895 843 ist eine Straßenfräsmaschine bekannt, deren Fräswerkzeug in Fahrtrichtung vor dem Fahrerstand angeordnet ist. Das Fräswerkzeug ist von dem Fahrerstand durch eine Aussparung in der Bodenplatte teilweise sichtbar. Nachteilig ist, dass die Sicht von der Konsole mit den Instrumenten und der sich von der Bodenplatte nach oben erstreckenden Lenksäule behindert wird. Darüber hinaus wird auch die Beinfreiheit des Fahrers behindert.From the US 3,895,843 is a road milling machine known, the milling tool is arranged in the direction of travel in front of the driver's station. The milling tool is partially visible from the driver's cab by a recess in the bottom plate. The disadvantage is that the view of the console with the instruments and the upwardly extending from the bottom plate steering column is obstructed. In addition, the legroom of the driver is also hindered.

In der Broschüre "Kaltfräse W 600 DC" Mai 2001 (2001-05, Wirtgen GmbH, Deutschl and, XP002383165) ist eine Kaltfräse beschrieben, die einen am Heck der Fräse angeordneten Fahrerstand mit einem Fahrersitz und einer Bodenplatte aufweist. Vor dem Fahrersitz ist oberhalb der Bodenplatte am Chassis der Fräsmaschine eine Konsole befestigt, auf der ein Lenkrad angeordnet ist. Den Fahrersitz und das Lenkrad kann der Fahrer der Fräsmaschine auf seine Körpergröße einstellen, um die Fräskante immer im Blick zu haben. Die Lenkeinrichtung der bekannten Fräsmaschine ist als eine hydraulische Lenkung ausgebildet, deren Steuerelemente (Hydraulikeinheit) innerhalb des Chassis angeordnet sind.In the Brochure "Cold milling machine W 600 DC" May 2001 (2001-05, Wirtgen GmbH, Germany and, XP002383165) a cold milling machine is described, which has a arranged at the rear of the mill driver's cab with a driver's seat and a bottom plate. In front of the driver's seat, a console is mounted above the bottom plate on the chassis of the milling machine, on which a steering wheel is arranged. The driver's seat and the steering wheel can be adjusted to the size of the driver of the milling machine in order to always have the milling edge in view. The steering device of the known milling machine is designed as a hydraulic steering, the controls (hydraulic unit) are arranged within the chassis.

Die US-A-3 362 247 beschreibt den Fahrerstand einer landwirtschaftlichen Maschine, der einen Fahrersitz und ein in der Höhe verstellbares Lenkrad umfasst. Das Lenkrad sitzt auf einem Lenkgehäuse, das die Hydraulik der Lenkung aufnimmt. Das Lenkgehäuse ist über eine gebogene Lenksäule, die im Wesentlichen horizontal ausgerichtet ist, mit einem Gehäuse verbunden, das die Bedienelemente aufnimmt. Durch Verdrehen der gebogenen Lenksäule kann das Lenkrad in der Höhe verstellt werden.The US-A-3,362,247 describes the driver's station of an agricultural machine comprising a driver's seat and a height-adjustable steering wheel. The steering wheel sits on a steering housing that receives the hydraulics of the steering. The steering housing is connected via a bent steering column, which is oriented substantially horizontally, with a housing which receives the operating elements. By turning the bent steering column, the steering wheel can be adjusted in height.

Der vorliegenden Erfindung liegt die Aufgabe zu Grunde, eine Straßenfräsmaschine zu schaffen, die eine einfache und bequeme Beobachtung der zu bearbeitenden Verkehrsfläche vom Fahrerstand aus ermöglicht.The present invention is based on the object to provide a road milling machine, which allows a simple and convenient observation of the traffic area to be processed from the driver's cab.

Die Lösung dieser Aufgabe erfolgt erfindungsgemäß mit den Merkmalen des Patentanspruchs 1. Eine vorteilhafte Ausführungsform der erfindungsgemäßen Straßenfräsmaschine ist Gegenstand des Unteranspruchs.The solution of this object is achieved according to the invention with the features of claim 1. An advantageous embodiment of the road milling machine according to the invention is the subject of the subclaim.

Die erfindungsgemäße Straßenfräsmaschine weist einen Fahrerstand auf, der mit einer Bodenplatte versehen ist. Auf dieser Bodenplatte kann der Fahrzeugführer stehen oder auch sitzen, sofern eine entsprechende Sitzgelegenheit auf der Bodenplatte angebracht ist. Am Chassis der Straßenfräsmaschine ist eine Lenkeinrichtung befestigt, die der Lenkung beispielsweise eines Rades, der Räder einer Achse oder der Kettenlaufwerke dient, auf denen eine Straßenfräsmaschine üblicherweise abgestützt ist. Die Lenkeinrichtung umfasst eine Konsole sowie ein daran angeordnetes Lenkrad. Unter einem Lenkrad ist in diesem Zusammenhang jegliches handbetätigbare Lenkmittel zu verstehen. Erfindungsgemäß ist die Konsole mit einem Ende seitlich am Chassis befestigt. Der Begriff seitlich bezieht sich hierbei auf die Fahrtrichtung. Ausgehend von dem befestigten Ende erstreckt sich die Konsole oberhalb der Bodenplatte unter Ausbildung einer Öffnung zwischen der Bodenplatte und der Konsole zur Seite. Unter dem Begriff oberhalb ist hierbei zu verstehen, dass die Konsole höher als die Bodenplatte angeordnet ist. Eine unmittelbare Anordnung der Konsole über der Bodenplatte ist nicht erforderlich. Das andere Ende der Konsole bildet ein freies Ende aus.The road milling machine according to the invention has a driver's station, which is provided with a bottom plate. On this floor plate, the driver can stand or even sit, provided that a corresponding seating is mounted on the bottom plate. On the chassis of the road milling machine, a steering device is attached, which serves the steering, for example, a wheel, the wheels of an axle or the crawler tracks on which a road milling machine is usually supported. The steering device comprises a console and a steering wheel arranged thereon. Under a steering wheel in this context, any hand-operated steering means to understand. According to the invention, the console is attached at one end to the side of the chassis. The term laterally refers to the direction of travel. Starting from the fixed end, the console extends above the bottom plate to form an opening between the bottom plate and the console to the side. Under the term above Here, it should be understood that the console is located higher than the bottom plate. An immediate arrangement of the console over the bottom plate is not required. The other end of the console forms a free end.

Durch die unterhalb der Konsole verbleibende Öffnung hat der Fahrzeugführer die Möglichkeit, die zu bearbeitende Verkehrsfläche zu beobachten, ohne sich zur Seite lehnen zu müssen, wie dies bei herkömmlichen Straßenfräsmaschinen der Fall ist, bei denen die Seite des Chassis die Sicht versperrt, an der die Konsole angeordnet ist. Darüber hinaus bewirkt die einseitige Befestigung der Konsole, dass ein freies Ende der Konsole entsteht, das nicht nach unten gegenüber dem Chassis abgestützt werden muss, so dass kein die Sicht behinderndes Abstützmittel an diesem Ende erforderlich ist. Darüber hinaus gewährleistet die Öffnung unterhalb der Konsole dem Fahrzeugführer eine größere Beinfreiheit. Die Aussparung der Bodenplatte, durch die der Fahrer den Straßenbelag erkennt, kann sich entweder nur über einen Teil oder die gesamte Länge der Bodenplatte erstrecken.With the opening remaining underneath the console, the driver has the opportunity to observe the traffic area to be processed without having to lean to the side, as is the case with conventional road milling machines, where the side of the chassis obstructs the view at which the Console is arranged. In addition, the one-sided mounting of the console causes a free end of the console is formed, which does not have to be supported down against the chassis, so that no visibility obstructing support means is required at this end. In addition, the opening below the console ensures the driver greater legroom. The recess of the floor plate, by which the driver recognizes the road surface, can either extend only over a part or the entire length of the floor plate.

Die Konsole der erfindungsgemäßen Straßenfräsmaschine braucht nicht an der äußersten Seitenwand des Chassis seitlich angeordnet zu werden, sondern kann auch nach innen versetzt in Fahrtrichtung hinter einem Teil des Chassis angeordnet sein. Bei einer besonders vorteilhaften Ausführungsform der Straßenfräsmaschine ist die Konsole nach innen versetzt, wobei das Chassis in Fahrtrichtung vor der Öffnung derart ausgespart ist, dass der Straßenbelag sichtbar ist. So ist einerseits eine geringe Gesamtbreite der Straßenfräsmaschine erzielbar, da die Konsole nicht über die äußerste Seitenwand des Chassis vorsteht, während andererseits ist die zu bearbeitende Verkehrsfläche weiterhin gut sichtbar ist.The console of the road milling machine according to the invention need not be arranged laterally on the outermost side wall of the chassis, but can also be arranged offset inwards in the direction of travel behind a part of the chassis. In a particularly advantageous embodiment of the road milling machine, the console is offset inwards, wherein the chassis is recessed in the direction of travel before the opening so that the pavement is visible. Thus, on the one hand a small overall width of the road milling machine can be achieved because the console does not project beyond the outermost side wall of the chassis, while on the other hand, the traffic area to be processed is still clearly visible.

Bei der erfindungsgemäßen Straßenfräsmaschine kann das Lenkrad um die Längsachse der Konsole verschwenkt werden. Damit kann die Position des Lenkrades daran angepasst werden, ob der Fahrzeugführer die Straßenfräsmaschine stehend oder sitzend bedient.In the road milling machine according to the invention, the steering wheel can be pivoted about the longitudinal axis of the console. This allows the position of the steering wheel on it be adjusted whether the driver operates the road milling machine standing or sitting.

Darüber hinaus kann das Lenkrad mitsamt der Konsole verschwenkt werden. Vorzugsweise sind an der Konsole weitere Bedienungs- und/oder Anzeigeelemente angeordnet, deren relative Anordnung zum Lenkrad erhalten bleibt, so dass die Bedienung vereinfacht ist.In addition, the steering wheel can be pivoted together with the console. Preferably, further operating and / or display elements are arranged on the console, the relative arrangement is maintained to the steering wheel, so that the operation is simplified.

Um ein sicheres Lenken in den unterschiedlichen Schwenkpositionen des Lenkrades zu gewährleisten, kann das Lenkrad in unterschiedlichen Schwenkpositionen arretiert werden. Eine solche Arretierung kann eine stufenweise oder stufenlose Einstellung der Schwenkposition ermöglichen.To ensure safe steering in the different pivot positions of the steering wheel, the steering wheel can be locked in different pivot positions. Such a lock can allow a gradual or continuous adjustment of the pivot position.

Die erfindungsgemäße Straßenfräsmaschine weist eine hydraulische Lenkung auf, wobei die Steuerelemente der hydraulischen Lenkung innerhalb der Konsole angeordnet sind und über das Lenkrad betätigt werden können.The road milling machine according to the invention has a hydraulic steering, wherein the controls of the hydraulic steering are arranged within the console and can be operated via the steering wheel.

Um eine einfache Montage der erfindungsgemäßen Straßenfräsmaschine sowie eine einfache Austauschbarkeit der Lenkeinrichtung zu ermöglichen, ist die Straßenfräsmaschine derart ausgebildet, dass die Konsole lösbar an dem Chassis befestigt ist.In order to enable a simple assembly of the road milling machine according to the invention and a simple interchangeability of the steering device, the road milling machine is designed such that the console is releasably attached to the chassis.

Um eine besonders einfache Montage bzw. Demontage der Lenkeinrichtung zu ermöglichen, ist die Konsole in Richtung deren Längsachse auf das Chassis aufgesteckt und mittels einer Drehbewegung der Konsole um deren Längsachse befestigt werden. Unter Befestigen ist in diesem Zusammenhang zu verstehen, dass die Konsole nicht mehr in Richtung ihrer Längsachse bewegt und somit abgezogen werden kann. Es kann somit auch von einem sogenannten Bajonett-Verschluss gesprochen werden.In order to allow a particularly simple assembly and disassembly of the steering device, the console is mounted in the direction of the longitudinal axis of the chassis and secured by a rotational movement of the console about its longitudinal axis. By fastening is to be understood in this context that the console is no longer moved in the direction of its longitudinal axis and thus can be removed. It can therefore also be spoken of a so-called bayonet closure.

Im Folgenden wird die Erfindung an Hand eines Ausführungsbeispieles unter Bezugnahme auf die beigefügten Figuren im Einzelnen erläutert.In the following the invention with reference to an embodiment with reference to the accompanying figures will be explained in detail.

Es zeigen:

Fig. 1
eine schematische Darstellung einer Ausführungsform der erfindungsgemäßen Straßenfräsmaschine in Form einer Hecklader-Straßenfräsmaschine in der Seitenansicht,
Fig. 1a
eine teilweise Draufsicht auf die Straßenfräsmaschine von Fig. 1,
Fig. 2
eine Draufsicht auf die Konsole von Fig. 1, wobei das Lenkrad nicht dargestellt ist,
Fig. 3
einen Schnitt entlang der Linie A-A von Fig. 2,
Fig. 4
einen Schnitt entlang der Linie B-B von Fig. 2 und
Fig. 5
einen Schnitt entlang der Linie B-B von Fig. 2, wobei das Chassis nicht dargestellt ist, so dass lediglich die Konsole zu sehen ist.
Show it:
Fig. 1
a schematic representation of an embodiment of the road milling machine according to the invention in the form of a rear-loading road milling machine in side view,
Fig. 1a
a partial plan view of the road milling machine of Fig. 1 .
Fig. 2
a top view of the console of Fig. 1 , wherein the steering wheel is not shown,
Fig. 3
a section along the line AA of Fig. 2 .
Fig. 4
a section along the line BB of Fig. 2 and
Fig. 5
a section along the line BB of Fig. 2 , wherein the chassis is not shown, so that only the console can be seen.

Die Straßenfräsmaschine 2 weist ein Chassis 4 auf, das bei der vorliegenden Ausfiihrungsform auf drei Rädern 6, 6, 8 abgestützt ist, wobei die beiden Hinterräder 6, 6 (nur eines ist in Fig. 1 zu sehen) seitlich im Bereich des Hecks und das Vorderrad 8 mittig im Bereich der Frontseite der Straßenfräsmaschine 2 angeordnet ist. Die Hinterräder 6, 6 sind mittels einer Hydraulik höhenverstellbar, wobei die Lenkung der Straßenfräsmaschine 2 über das Vorderrad 8 erfolgt, das um eine senkrechte Achse a rotiert werden kann. Alternativ kann eine solche Straßenfräsmaschine 2 an Stelle der Räder 6, 6, 8 auch von Kettenlaufwerken getragen werden. Auch kann die Anzahl der vorgesehenen Räder oder Kettenlaufwerke variieren.The road milling machine 2 has a chassis 4, which in the present embodiment is supported on three wheels 6, 6, 8, the two rear wheels 6, 6 (only one being in FIG Fig. 1 seen) laterally in the region of the rear and the front wheel 8 is arranged centrally in the region of the front side of the road milling machine 2. The rear wheels 6, 6 are height-adjustable by means of a hydraulic, wherein the steering of the road milling machine 2 via the front wheel 8 takes place, which can be rotated about a vertical axis a. Alternatively, such a road milling machine 2 in place of the wheels 6, 6, 8 are also worn by crawler tracks. Also, the number of wheels or crawlers provided may vary.

Innerhalb des Chassis 4 ist ferner mindestens ein Antriebsmotor für eine Fräswalze und die Räder 6, 6, 8 sowie eine Hydraulik vorgesehen. Ferner sind die aus dem Stand der Technik bekannten Zusatzaggregate vorgesehen, wobei auf deren Darstellung aus Übersichtlichkeitsgründen verzichtet werden soll.Within the chassis 4, at least one drive motor for a milling drum and the wheels 6, 6, 8 and a hydraulic system are also provided. Furthermore, the Provided known from the prior art additional units, which should be waived their representation for reasons of clarity.

Der Fahrerstand 10 ist oben im Heck der Straßenfräsmaschine 2 vorgesehen, wo sich unter anderem eine Sitzgelegenheit 12 für den Fahrzeugführer befindet, die auf einer Bodenplatte 14 angeordnet ist. Die Straßenfräsmaschine 2 kann durch den Fahrzeugführer sowohl auf der Bodenplatte 14 stehend als auch auf der Sitzgelegenheit 12 sitzend bedient werden.The driver's station 10 is provided at the top in the rear of the road milling machine 2, where, inter alia, a seat 12 for the driver is located, which is arranged on a base plate 14. The road milling machine 2 can be operated sitting by the driver both on the bottom plate 14 and sitting on the seat 12.

Unterhalb des Fahrerstandes 10 befindet sich ein Walzengehäuse 16. Das Walzengehäuse 16 ist ein nach unten, also in Richtung des Straßenbelages 18, geöffnetes Gehäuse, in dem eine Fräswalze 20 angeordnet ist, wobei sich die Längsachse der Fräswalze 20 quer zur Fahrtrichtung erstreckt, die in Fig. 1 an Hand des Pfeils b dargestellt ist. Die Fräswalze 20 ragt aus dem Walzengehäuse 16 nach unten in Richtung des Straßenbelages 18 hervor.Below the driver's station 10 is a roller housing 16. The roller housing 16 is a downward, ie in the direction of the road surface 18, open housing in which a milling drum 20 is arranged, wherein the longitudinal axis of the milling drum 20 extends transversely to the direction of travel, in Fig. 1 is shown on the arrow b. The milling drum 20 projects out of the roller housing 16 downwards in the direction of the road surface 18.

An dem in Fahrtrichtung b hinteren Ende des Walzengehäuses 16 ist eine höhenverstellbare Abstreifeinrichtung 22 vorgesehen. In Fahrtrichtung b hinter der Abstreifeinrichtung 22 ist wiederum eine Transporteinrichtung 24 vorgesehen, über die das abgefräste Fräsgut einem begleitenden LKW mit entsprechender Ladefläche zugeführt werden kann (nicht dargestellt). Da das Fräsgut über das Heck der Straßenfräsmaschine 2 dem LKW zugeführt, handelt es sich um eine sogenannte Hecklader-Straßenfräsmaschine. Die Straßenfräsmaschine kann aber auch ein sogenannter Frontlader sein.At the rear end of the roller housing 16 in the direction of travel b, a height-adjustable stripping device 22 is provided. In the direction of travel b behind the stripping device 22 in turn a transport device 24 is provided, via which the milled milled material can be fed to an accompanying truck with a corresponding loading area (not shown). Since the milled material is fed to the truck via the rear of the road milling machine 2, it is a so-called rear-loading road milling machine. The road milling machine can also be a so-called front loader.

Im Bereich des Fahrerstandes 10 ist ferner eine Lenkeinrichtung 26 vorgesehen, die eine Konsole 28 sowie ein an der Konsole 28 angeordnetes Lenkrad 30 umfasst. Die Konsole 28 ist mit einem Ende 32 seitlich am Chassis 4 befestigt, wohingegen das andere Ende der Konsole 28 als freies Ende 34 ausgebildet ist. Die Konsole 28 erstreckt sich ausgehend von ihrem befestigten Ende 32 quer zur Fahrtrichtung b zur Seite, wobei die Konsole oberhalb der Bodenplatte 14 verläuft, so dass eine Öffnung 36 zwischen der Bodenplatte 14 und der Konsole 28 ausgebildet ist.In the area of the driver's station 10, a steering device 26 is furthermore provided which comprises a bracket 28 and a steering wheel 30 arranged on the bracket 28. The console 28 is attached at one end 32 laterally on the chassis 4, whereas the other end of the bracket 28 is formed as a free end 34. The bracket 28 extends from its fixed end 32 transversely to the direction b to the side, the console above the bottom plate 14th runs, so that an opening 36 between the bottom plate 14 and the bracket 28 is formed.

Wie aus Fig. 1a ersichtlich, ist die Konsole 28 an einer nach innen zurück versetzten Seitenwand des Chassis 4 befestigt. Um dem Fahrzeugführer (nicht dargestellt) auf dem Fahrerstand 10 freie Sicht durch die Öffnung 36 auf den Straßenbelag 18 zu ermöglichen, ist die Straßenfräsmaschine 2 bzw. das Chassis 4 der Straßenfräsmaschine 2 in der dargestellten Ausführungsform in Fahrtrichtung b vor der Öffnung 36 ausgespart. Dies bedeutet, dass sich in Fahrtrichtung b vor der Öffnung 36 eine Aussparung 38 befindet, die sich in der dargestellten Ausführungsform über die gesamte Höhe des Chassis 4 erstreckt. Wenn der Fahrzeugführer sitzt, kann er beispielsweise durch die Öffnung 36 und die Aussparung 38 auf den Straßenbelag 18 schauen. Wenn der Fahrzeugführer steht, aber sich nach vorne beugt, kann er beispielsweise direkt durch die Aussparung 38 schauen.How out Fig. 1a As can be seen, the bracket 28 is attached to an inwardly offset back side wall of the chassis 4. In order to allow the driver (not shown) on the operator's cab 10 clear view through the opening 36 on the pavement 18, the road milling machine 2 and the chassis 4 of the road milling machine 2 is recessed in the illustrated embodiment in the direction of travel b in front of the opening 36. This means that in the direction of travel b in front of the opening 36 is a recess 38 which extends in the illustrated embodiment over the entire height of the chassis 4. When the driver sits, he can look through the opening 36 and the recess 38 on the pavement 18, for example. For example, if the driver stands but bends forward, he may look directly through the recess 38.

Das Lenkrad 30 kann um die Längsachse 40 der Konsole 28 verschwenkt werden, wobei vorteilhafterweise die Konsole 28 zusammen mit dem Lenkrad 30 um die Achse 40 gedreht wird. Damit ist es möglich, die Position des Lenkrades optimal daran anzupassen, ob der Fahrer steht oder sitzt. Auch eine Anpassung an die Größe des Fahrers ist damit möglich. In besonderen Anwendungsfällen ist die Verschwenkbarkeit des Lenkrades aber auch insofern von Vorteil, als durch Verschwenken des Lenkrades die Sicht aus unterschiedlichen Blickwinkeln freigegeben wird. Zur Illustration werden in Fig. 1 unterschiedliche Blickwinkel des Fahrers durch Pfeile c, d, e, f gekennzeichnet. Die Pfeile zeigen, dass in Abhängigkeit von der Position des Lenkrades die eine oder andere Blickrichtung freigegeben wird. Für den Fahrer kann es bestimmten Fahrsituationen sinnvoll sein, das Lenkrad ungeachtet der ergonomischen Gesichtspunkte zu verschwenken, damit die Sicht auf die Fahrbahn nicht von dem Lenkrad verdeckt wird.The steering wheel 30 can be pivoted about the longitudinal axis 40 of the bracket 28, advantageously the bracket 28 is rotated together with the steering wheel 30 about the axis 40. This makes it possible to optimally adjust the position of the steering wheel, whether the driver is standing or sitting. An adaptation to the size of the driver is thus possible. In special cases, the pivotability of the steering wheel but also advantageous insofar as the view is released from different angles by pivoting the steering wheel. For illustration, in Fig. 1 different angles of the driver by arrows c, d, e, f marked. The arrows show that, depending on the position of the steering wheel, one or the other viewing direction is released. For the driver, it may be useful for certain driving situations to pivot the steering wheel regardless of the ergonomic aspects, so that the view of the roadway is not obscured by the steering wheel.

Das Lenkrad 30 kann in unterschiedlichen Schwenkpositionen arretiert werden. Ferner ist die Konsole 28 lösbar an dem Chassis 4 befestigt, wobei die Konsole 28 zur einfachen Montage auf dem Chassis 4 aufgesteckt und mittels einer Drehbewegung um die Längsachse 40 der Konsole 28 befestigt werden kann. Wie die vorstehend genannten Merkmale durch eine besondere Ausführungsform von Konsole 28 und Chassis 4 realisiert werden können, wird imFolgenden unter Bezugnahme auf die Fig. 2 bis 5 beschrieben.The steering wheel 30 can be locked in different pivot positions. Further, the bracket 28 is releasably attached to the chassis 4, wherein the bracket 28 can be plugged onto the chassis 4 for easy mounting and secured by means of a rotary movement about the longitudinal axis 40 of the bracket 28. How the above features can be realized by a particular embodiment of bracket 28 and chassis 4 will be explained in the following with reference to FIGS Fig. 2 to 5 described.

Die Konsole 28 weist ein im Wesentlichen zylindrisches Gehäuse 42 auf, wobei die Wand des Gehäuses 42 in einem Bereich als ebene Fläche 44 ausgebildet ist, an der das Lenkrad 30 befestigt wird, auf dessen Darstellung in den Fig. 2 bis 5 aus Übersichtlichkeitsgründen verzichtet wird. An dem freien Ende 34 der Konsole 28 ist das Gehäuse offen, um eine leichte Zugänglichkeit zu den Steuermitteln (nicht dargestellt) der hydraulischen Lenkung zu gewährleisten. Dennoch sollte die Konsole 28 mittels einer Abdeckung 46 geschützt sein, die an Hand der gestrichelten Linie in Fig. 3 dargestellt ist.The bracket 28 has a substantially cylindrical housing 42, wherein the wall of the housing 42 is formed in a region as a flat surface 44 to which the steering wheel 30 is attached, as shown in the Fig. 2 to 5 is omitted for clarity. At the free end 34 of the console 28, the housing is open to ensure easy accessibility to the control means (not shown) of the hydraulic steering. Nevertheless, the console 28 should be protected by means of a cover 46, which is indicated by the dashed line in FIG Fig. 3 is shown.

Die Wand des Gehäuses 42 weist an der ebenen Fläche 44 mehrere Öffnungen 61 zur Montage von in Fig. 2 nicht dargestellten Bedienungs- und/oder Anzeigeelementen 62, 63 auf, die an der Oberseite der Konsole neben dem Lenkrad angeordnet sind (Fig. 1a). Die in den Figuren nicht dargestellten Zuleitungen für die Bedienungs- und Anzeigelemente werden zusammen mit den ebenfalls nicht dargestellten Hydraulikleitungen entlang der Längsachse 40 durch die rohrförmige Achse 54 in den chassisseitigen Hohlraum 56 geführt. Da die Leitungen eine ausreichende Länge haben, können sich die Leitungen beim Verschwenken der Konsole verdrehen, ohne dabei beschädigt zu werden.The wall of the housing 42 has on the flat surface 44 a plurality of openings 61 for mounting in Fig. 2 not shown operating and / or display elements 62, 63 which are arranged at the top of the console next to the steering wheel ( Fig. 1a ). The supply lines for the operating and display elements, not shown in the figures, are guided together with the hydraulic lines, also not shown, along the longitudinal axis 40 through the tubular axis 54 in the chassis-side cavity 56. Since the lines have a sufficient length, the lines can rotate when pivoting the console, without being damaged.

An dem dem Chassis 4 zugewandten Ende 32 weist die Konsole 28 eine Verbindungsplatte 48 auf, die insbesondere in Fig. 5 näher dargestellt ist. Die Verbindungsplatte 48 weist eine Verbindungsöffnung 50 auf, die länglich ausgebildet ist. Darüber hinaus sind mehrere Arretierbohrungen 52 in der Verbindungsplatte 50 vorgesehen, die alle den selben Abstand zum Mittelpunkt 55 der Verbindungsplatte 50 aufweisen.At the end facing the chassis 4 32, the console 28 has a connecting plate 48, in particular in Fig. 5 is shown in more detail. The connecting plate 48 has a connection opening 50, which is elongated. In addition, a plurality of locking holes 52 in the Connection plate 50 is provided, which all have the same distance from the center 55 of the connecting plate 50.

Chassisseitig ist eine feststehende, rohrförmige Achse 54 vorgesehen, die in einen chassisseitigen Hohlraum 56 mündet, durch den sich Hydraulikleitungen erstrecken können. An der Achse 54 sind zwei Flansche 57, 58 vorgesehen, wobei der der Konsole zugewandte Flansch 58 im Wesentlichen länglich ausgebildet ist und in einer bestimmten Schwenkstellung der Verbindungsplatte 48 durch die Verbindungsöffnung 50 hindurchführbar ist. Der dem Chassis 4 zugewandte Flansch 57 ist von dem Flansch 58 beabstandet angeordnet, so dass sich zwischen diesen eine nach außen weisende, ringförmige Nut 60 ausbildet. Ferner sind an den einander zugewandten Seiten der Flansche 57, 58 Gleit- oder Dichtungsmittel 66 in Form von Gleit- oder Dichtringen vorgesehen.Chassis-side, a fixed, tubular axis 54 is provided, which opens into a chassis-side cavity 56 through which hydraulic lines can extend. On the axis 54, two flanges 57, 58 are provided, wherein the console facing flange 58 is formed substantially elongated and in a certain pivotal position of the connecting plate 48 can be passed through the connection opening 50. The chassis 4 facing the flange 57 is spaced from the flange 58, so that between them an outwardly facing, annular groove 60 is formed. Further, sliding or sealing means 66 in the form of sliding or sealing rings are provided on the mutually facing sides of the flanges 57, 58.

Um die Konsole 28 mit dem Chassis 4 zu verbinden, wird diese in einer Schwenkstellung auf die Achse 54 geschoben, in der der längliche Flansch 58 durch die Verbindungsöffnung 50 hindurchführbar ist. Im Anschluss daran wird die Konsole um deren Längsachse 40 gedreht, so dass der Rand der Verbindungsöffnung 50 in der Nut 60 zwischen den beiden Flanschen 57, 58 einliegt. Ein Abziehen der Konsole 28 in Richtung der Längsachse 40 ist in dieser Position nicht mehr möglich, so dass die Konsole 28 befestigt ist. Man spricht auch von einem sogenannten Bajonett-Verschluss. Um die Konsole 28 in einer bestimmten Schwenkstellung zu arretieren, kann beispielsweise ein vorgespannter Stift (nicht dargestellt) in eine Arretierungsöffnung 64 in dem feststehenden Flansch 57 und eine der Arretierbohrungen 52 geschoben werden. Eine weitere Rotation der Konsole 28 sowie des daran befestigten Lenkrades (nicht dargestellt) wird hierdurch unterbunden.To connect the console 28 to the chassis 4, this is pushed in a pivotal position on the axis 54, in which the elongated flange 58 can be passed through the connection opening 50. Subsequently, the console is rotated about its longitudinal axis 40, so that the edge of the connection opening 50 in the groove 60 between the two flanges 57, 58 rests. Pulling off the bracket 28 in the direction of the longitudinal axis 40 is no longer possible in this position, so that the bracket 28 is attached. One speaks also of a so-called bayonet closure. To lock the console 28 in a particular pivot position, for example, a biased pin (not shown) may be slid into a locking aperture 64 in the fixed flange 57 and one of the locking holes 52. A further rotation of the console 28 and the attached steering wheel (not shown) is thereby prevented.

Claims (2)

  1. Road milling machine having a driver's position (10) which has a floor plate (14) and having a steering arrangement (26) which is fixed to the chassis (4) of the road milling machine (2) and which has a console (28) on which a steering wheel (30) is arranged, the console (28) being fastened to the chassis (4) laterally by one end (32) while the other end (34) of the console (28) is free, the console (28) extending sideways above the floor plate (14) to create an opening (36) between the floor plate (14) and the console (28), and the chassis (4) of the road milling machine (2) having, upstream of the opening (36) in the direction of travel (b), a recess (38), the road surfacing (18) thus being visible through the opening (36), characterised in that the steering wheel (30), together with the console (28), can be pivoted on the longitudinal axis (40) of the console (28) and the steering wheel (30) can be locked in different pivoted positions, a hydraulic steering system is provided, the control members of the hydraulic steering system being arranged inside the console (28) and being operable by means of the steering wheel (30), and the console (28) being detachably fastened to the chassis (4), the console (28) being able to be inserted onto the chassis (4) in the direction defined by its own longitudinal axis (40) and being able to be fastened in position by means of a rotary movement of the said console (28) on its own longitudinal axis (40).
  2. Road milling machine according to claim 1, characterised in that operating and/or indicating members (62, 63) are arranged on the console (28).
EP04022746A 2003-10-10 2004-09-24 Road milling machine with steering device Not-in-force EP1522633B1 (en)

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DE10347873A DE10347873B4 (en) 2003-10-10 2003-10-10 Road milling machine with steering device
DE10347873 2003-10-10

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EP1522633A2 EP1522633A2 (en) 2005-04-13
EP1522633A3 EP1522633A3 (en) 2006-07-19
EP1522633B1 true EP1522633B1 (en) 2012-07-25

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US (1) US6997641B2 (en)
EP (1) EP1522633B1 (en)
CN (1) CN100355983C (en)
DE (1) DE10347873B4 (en)

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Publication number Publication date
EP1522633A3 (en) 2006-07-19
DE10347873B4 (en) 2005-08-04
US6997641B2 (en) 2006-02-14
CN1605681A (en) 2005-04-13
CN100355983C (en) 2007-12-19
EP1522633A2 (en) 2005-04-13
US20050093282A1 (en) 2005-05-05
DE10347873A1 (en) 2005-05-12

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