WO2023272328A1 - Driver's cab of a tractor vehicle - Google Patents

Driver's cab of a tractor vehicle Download PDF

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Publication number
WO2023272328A1
WO2023272328A1 PCT/AT2022/060231 AT2022060231W WO2023272328A1 WO 2023272328 A1 WO2023272328 A1 WO 2023272328A1 AT 2022060231 W AT2022060231 W AT 2022060231W WO 2023272328 A1 WO2023272328 A1 WO 2023272328A1
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WO
WIPO (PCT)
Prior art keywords
cab
driver
extension
towing vehicle
coolant
Prior art date
Application number
PCT/AT2022/060231
Other languages
German (de)
French (fr)
Inventor
Johannes Mayr
Alexander RAUHE
Original Assignee
Avl List Gmbh
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 Avl List Gmbh filed Critical Avl List Gmbh
Priority to DE112022001425.3T priority Critical patent/DE112022001425A5/en
Publication of WO2023272328A1 publication Critical patent/WO2023272328A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
    • B62D33/067—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other tiltable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D35/00—Vehicle bodies characterised by streamlining
    • B62D35/001—For commercial vehicles or tractor-trailer combinations, e.g. caravans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds

Definitions

  • the invention relates to a driver's cab of a towing vehicle, for example a semi-trailer tractor (SZM) or a truck (LKW), which is hinged to the chassis of the towing vehicle such that it can be tilted forward for service and maintenance purposes, the driver's cab having a pivotable cab front section which projects in the direction of travel.
  • SZM semi-trailer tractor
  • LKW truck
  • the driver's cabs of many modern towing vehicles can be tilted forward from an operating position in which the driver's cab is positioned above the chassis-mounted drive unit into a service position in which the drive unit is freely accessible for service and maintenance work.
  • the cabin stem can contain components of the drive unit, for example cooler components.
  • a commercial vehicle with a driver's cab that can be tilted forward has become known, the driver's cab comprising a driver's cab and a bonnet protruding forward.
  • the commercial vehicle's engine which is located under the floor of the cab, is mounted on the chassis of the commercial vehicle, with a radiator assembly for cooling the engine being attached to the chassis in front of the cab.
  • the bonnet which protrudes forward, encloses the cooler assembly.
  • the cab has a tilting axis located in front of the cooler assembly.
  • US Pat. No. 4,921,062 A shows a truck with a tiltable driver's cab which is arranged above the engine in the operating position (cab-over-engine truck).
  • the cab which is mounted above the truck engine and other engine-related components including a radiator, can be pivoted between an upright operating position and a tilted-forward service position.
  • the driver's cab points forward and upwardly pivoting bonnet, which is U-shaped in horizontal section and has pivot points on the two side parts, which are hinged to the side of the driver's cab.
  • the bonnet is pivoted forwards and upwards at its pivot points if there is a relatively large amount of space required and then tilted down together with the driver's cab.
  • EP 2 163 415 A2 discloses a refrigeration machine for refrigerated vehicles which is attached to the refrigerated space above the pivotable driver's cab. So that there is no collision with the refrigeration machine when the driver's cab is pivoted, the refrigeration machine can be pivoted upwards.
  • US 2014/0251711 A1 describes a mechanism with which the driver's cab of a towing vehicle, together with a cab extension, can be moved forward into a service position.
  • the driver's cab is lifted off the chassis and moved forward without tilting, but the necessary structural requirements are considerable.
  • the object of the invention is to improve a driver's cab of a towing vehicle of the type described above, which has a cab extension that projects beyond the windshield in the direction of travel, in such a way that it can be moved from a basic position for ferry operation to a service position for service and maintenance purposes as easily as possible can be tilted.
  • the cabin front section has a lifting mechanism with which the cabin front section or at least part of the cabin front section can be raised into a service position in a lifting movement or a combined lifting and pivoting movement.
  • the cabin porch can be divided and have a lower, fixed cabin porch in the area of the bumper of the towing vehicle and an upper, raisable cabin porch that extends into the area of the lower edge of a windshield of the towing vehicle.
  • the upper part of the cab extension can accommodate raisable cooler components of the towing vehicle, such as cooler, cooler fan and coolant expansion tank, with the cooler components having flexible connection lines for the coolant and the power supply.
  • raisable cooler components of the towing vehicle such as cooler, cooler fan and coolant expansion tank
  • cooler components having flexible connection lines for the coolant and the power supply.
  • the front part of the driver's cab accommodates components of the towing vehicle with this pivotable cooler components, the cooler components having flexible connection lines for the coolant and the power supply.
  • FIG. 1 shows a driver's cab of a conventional towing vehicle with a flat front in the basic position
  • FIG. 2 shows the driver's cab according to FIG. 1 in a service position tilted forward
  • FIG. 3 shows another driver's cab of a conventional towing vehicle with a cab extension in the basic position
  • Fig. 4 shows a first embodiment of a driver's cab according to the invention of a towing vehicle with a cab extension in the basic position;
  • FIG. 5 shows the driver's cab according to FIG. 4, in which part of the cab extension is raised;
  • FIG. 6 shows the driver's cab according to FIG. 4 and FIG. 5 in a service position tilted forward;
  • FIG. 7 shows a second embodiment variant of a driver's cab of a towing vehicle according to the invention in the basic position and the service position
  • FIG 1 and 2 show a towing vehicle 10 (in the example shown an SZM) with a substantially flat front of the driver's cab 12 according to the prior art, with the front protruding only slightly beyond the windshield 18 of the towing vehicle 10 here.
  • the driver's cab is articulated on the chassis 11 so that it can be tilted forward from a basic position for ferry operation (see FIG. 1), the corresponding axis of rotation for the driver's cab 12 being indicated at 17 (see FIG. 2: service position).
  • Fig. 3 now shows another towing vehicle 10 according to the prior art, in which case the driver's cab 12 is above the plane of the windshield in the direction of travel 18 has the above cab stem 13, which can also accommodate components of the drive unit.
  • a tilting of the driver's cab 12 in a service position - while maintaining the position of the axis of rotation 17 shown in FIG. Shifting the axis of rotation further forward is disadvantageous, since this increases the mechanical complexity and the space required for the rotary movement of the driver's cab 12 .
  • FIGS. 4 to 6 This is where the invention comes in, which is sketched in FIGS. 4 to 6 in a first embodiment variant using a tractor unit (SZM).
  • SZM tractor unit
  • the same also applies to a truck with any structure and a driver's cab 12 that can be tilted forward.
  • the drive unit 24 is shown only schematically as a box in the individual variants, the concept according to the invention being independent of the drive type.
  • the thermal solution described below can be used for internal combustion engines (ICE, H2 ICE), electric drives (BEVs) and fuel cell drives (FCEV) alike.
  • the cab front end 13 of the driver's cab 12 has a lifting mechanism 16, with which the cab front end 13 or part of the cabin front end (see the example shown, the upper part 15 of the cab front end) can be lifted in a lifting movement or a combined lifting and lifting movement Swivel movement can be raised to a service position.
  • the cab extension 13 can preferably be divided (see dividing level 19) and have a lower, fixed cab extension 14 in the area of the bumper of the towing vehicle 10 and an upper, liftable cab extension 15, which extends into the area of the lower edge of the windshield 18 of the Towing vehicle 10 is enough.
  • the fixed part 14 of the cab stem can accommodate the number plate holder, the lighting system and/or the bumper of the train vehicle 10 .
  • the upper part 15 of the cabin extension 13 takes on cooler components 20 of the towing vehicle 10, such as cooler, cooling fan and coolant expansion vessel, the cooler components 20 having flexible connection lines 23 for the coolant and the power supply.
  • the lifting mechanism 20 has pairs of lifting arms 21, 22 articulated on the driver's cab 12 in the form of a four-bar linkage, the lifting movement being effected pneumatically, hydraulically or by an electric motor in a manner not shown, or at least supported by those who can.
  • the flexible connecting lines 23 for the coolant and the energy supply can preferably be guided along the lifting arms 21, 22 and at least partially attached thereto. It is also possible to provide separate guide and support structures for the flexible connection lines 23 for the coolant and the energy supply, or to guide the flexible connection lines 23 at least partially in the lifting arms 21, 22 or to integrate them into them.
  • the lifting arms 21, 22 can be articulated in the form of a trapezoidal guide on the driver's cab 12 in such a way that the upper cab extension 15 in the raised service position projects from the windshield 18 of the towing vehicle 10 at a point angle has tilted away.
  • the lifting arms 21, 22 could be articulated in the form of a parallel guide on the driver's cab 12 (not shown), such that the upper cab extension 15 is aligned parallel to the basic position in the raised service position.
  • Fig. 7 shows a second embodiment variant of the invention, with a front cabin 13 that can be pivoted forwards and downwards about an axis 25, with the cabin front 13 accommodating pivotable radiator components 20 of the towing vehicle 10, such as the radiator, radiator fan and coolant expansion tank.
  • the driver's cab 12 can be tilted about its axis of rotation 17 from the basic position into the service position (see driver's cab 12').
  • the cooler components 20 have flexible connection lines 23 to the coolant and the power supply.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a driver's cab (12) of a tractor vehicle (10), e.g. of a tractor or truck, said cab (12) being hinged to the chassis (11) of the tractor vehicle (10) so as to be able to be tilted forward for servicing and maintenance purposes, the cab (12) having a pivotable cab front end (13) that protrudes in the direction of travel. In order to enhance ease of maintenance, the cab front end (12) includes a lifting mechanism (16), by means of which the cab front end (13) or part (15) of the cab front end can be raised in a lifting movement or a combined lifting and pivoting movement into a maintenance position.

Description

Fahrerkabine eines Zugfahrzeugs Driver's cab of a towing vehicle
Die Erfindung betrifft eine Fahrerkabine eines Zugfahrzeugs, beispielsweise einer Sattelzugmaschine (SZM) oder eines Lastkraftwagens (LKW), die für Service- und Wartungszwecke nach vorne kippbar am Fahrgestell des Zugfahrzeugs angelenkt ist, wobei die Fahrerkabine einen in Fahrtrichtung vorstehenden, verschwenkbaren Kabinenvorbau aufweist. The invention relates to a driver's cab of a towing vehicle, for example a semi-trailer tractor (SZM) or a truck (LKW), which is hinged to the chassis of the towing vehicle such that it can be tilted forward for service and maintenance purposes, the driver's cab having a pivotable cab front section which projects in the direction of travel.
Die Fahrerkabinen vieler moderner Zugfahrzeuge können aus einer Betriebsstel lung, in der die Fahrerkabine über der am Fahrgestell montierten Antriebseinheit positioniert ist, nach vorne in eine Servicestellung gekippt werden, in der die An triebseinheit für Service- und Wartungsarbeiten frei zugängig ist. The driver's cabs of many modern towing vehicles can be tilted forward from an operating position in which the driver's cab is positioned above the chassis-mounted drive unit into a service position in which the drive unit is freely accessible for service and maintenance work.
Bei Zugfahrzeugen mit einer im Wesentlichen ebenen Vorderfront, bei welchen die frontseitige Motorabdeckung kaum über die Windschutzscheibe hinausragt, kann die Fahrerkabine - bei geringem Platzbedarf - auf relativ einfache Weise nach vorne gekippt werden. In the case of towing vehicles with a substantially flat front end, in which the front engine cover hardly protrudes beyond the windshield, the driver's cab can be tilted forward in a relatively simple manner, given that little space is required.
Schwieriger wird die Sache bei Zugfahrzeugen mit einer Fahrerkabine, die einen Kabinenvorbau (Cabin Extension) aufweisen, der über die Ebene der Windschutz scheibe vorragt. Der Kabinenvorbau kann Komponenten der Antriebseinheit, bei spielsweise Kühlerkomponenten, beinhalten. Things get more difficult with towing vehicles with a driver's cab that has a cab extension (cabin extension) that protrudes above the level of the windshield. The cabin stem can contain components of the drive unit, for example cooler components.
Aus der WO 2008/002221 Al ist beispielsweise ein Nutzfahrzeug mit einem nach vorne kippbaren Fahrerhaus bekannt geworden, wobei das Fahrerhaus eine Fah rerkabine und eine nach vorne ragende Motorhaube umfasst. Der Motor des Nutz fahrzeugs, der sich unter dem Boden des Fahrerhauses befindet, ist am Fahrgestell des Nutzfahrzeugs montiert, wobei eine Kühleranordnung zum Kühlen des Motors am Fahrgestell vor der Fahrerkabine angebracht ist. Die nach vorne ragende Mo torhaube umschließt die Kühlerbaugruppe. Das Fahrerhaus weist eine Kippachse auf die sich vor der Kühlerbaugruppe befindet. Beim Kippen des Fahrerhauses wird daher in nachteiliger Weise relativ viel Platz, insbesondere eine große Innenhöhe einer Werkstatthalle benötigt. From WO 2008/002221 A1, for example, a commercial vehicle with a driver's cab that can be tilted forward has become known, the driver's cab comprising a driver's cab and a bonnet protruding forward. The commercial vehicle's engine, which is located under the floor of the cab, is mounted on the chassis of the commercial vehicle, with a radiator assembly for cooling the engine being attached to the chassis in front of the cab. The bonnet, which protrudes forward, encloses the cooler assembly. The cab has a tilting axis located in front of the cooler assembly. When tilting the driver's cab, a relatively large amount of space, in particular a large interior height of a workshop hall, is therefore disadvantageously required.
Die US 4 921 062 A zeigt einen LKW mit einem kippbaren Fahrerhaus das in Be triebsstellung über dem Motor angeordnet ist (Cab-Over-Engine Truck). Das Fah rerhaus, das über dem Lkw-Motor, sowie über weiteren mit dem Motor zusam menwirkenden Komponenten einschließlich eines Kühlers montiert ist, kann zwi schen einer aufrechten Betriebsposition und einer nach vorne gekippten Wartungs position verschwenkt werden. Frontseitig weist das Fahrerhaus eine nach vorne und oben verschwenkbare Motorhaube auf, die im horizontalen Schnitt U-förmig ausgebildet ist und an den beiden Seitenteilen Drehpunkte aufweist, die seitlich am Fahrerhaus angelenkt sind. Vor dem Verkippen des Fahrerhauses in die War tungsposition wird die Motorhaube bei relativ großem Platzbedarf an deren Dreh punkten nach vorne und oben verschwenkt und dann gemeinsam mit dem Fahrer haus nach unten gekippt. US Pat. No. 4,921,062 A shows a truck with a tiltable driver's cab which is arranged above the engine in the operating position (cab-over-engine truck). The cab, which is mounted above the truck engine and other engine-related components including a radiator, can be pivoted between an upright operating position and a tilted-forward service position. At the front, the driver's cab points forward and upwardly pivoting bonnet, which is U-shaped in horizontal section and has pivot points on the two side parts, which are hinged to the side of the driver's cab. Before the driver's cab is tilted into the maintenance position, the bonnet is pivoted forwards and upwards at its pivot points if there is a relatively large amount of space required and then tilted down together with the driver's cab.
Aus der EP 2 163 415 A2 ist eine Kältemaschine für Kühlfahrzeuge bekannt ge worden, die am Kühlraum oberhalb der verschwenkbaren Fahrerkabine angebracht ist. Damit es beim Verschwenken der Fahrerkabine zu keiner Kollision mit der Käl temaschine kommt, kann die Kältemaschine nach oben verschwenkt werden.EP 2 163 415 A2 discloses a refrigeration machine for refrigerated vehicles which is attached to the refrigerated space above the pivotable driver's cab. So that there is no collision with the refrigeration machine when the driver's cab is pivoted, the refrigeration machine can be pivoted upwards.
In der US 2014/0251711 Al wird ein Mechanismus beschrieben mit welchem die Fahrerkabine eines Zugfahrzeugs mitsamt einem Kabinenvorbau nach vorne in eine Serviceposition verschoben werden kann. Die Fahrerkabine wird dabei vom Fahrgestell abgehoben und ohne Verkippung nach vorne versetzt, wobei jedoch die die notwendigen konstruktiven Anforderungen erheblich sind. US 2014/0251711 A1 describes a mechanism with which the driver's cab of a towing vehicle, together with a cab extension, can be moved forward into a service position. The driver's cab is lifted off the chassis and moved forward without tilting, but the necessary structural requirements are considerable.
Aufgabe der Erfindung ist es, eine Fahrerkabine eines Zugfahrzeugs der eingangs beschriebenen Art, die einen in Fahrtrichtung über die Windschutzscheibe hinaus ragenden Kabinenvorbau aufweist, derart zu verbessern, dass diese möglichst pro blemlos von einer Grundposition für den Fährbetrieb in eine Serviceposition für Service- und Wartungszwecke gekippt werden kann. The object of the invention is to improve a driver's cab of a towing vehicle of the type described above, which has a cab extension that projects beyond the windshield in the direction of travel, in such a way that it can be moved from a basic position for ferry operation to a service position for service and maintenance purposes as easily as possible can be tilted.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Kabinenvorbau einen Hebemechanismus aufweist, mit welchem der Kabinenvorbau oder zumin dest ein Teil des Kabinenvorbaus in einer Hubbewegung oder einer kombinierten Hub- und Schwenkbewegung in eine Servicestellung anhebbar ist. Durch diese Maßnahme kann - ohne wesentlichen konstruktiven Mehraufwand - die Mechanik für das Verkippen von Fahrerkabinen mit ebener Vorderfront übernommen wer den, wobei die Position der Drehachse weitgehend beibehalten werden kann.This object is achieved in that the cabin front section has a lifting mechanism with which the cabin front section or at least part of the cabin front section can be raised into a service position in a lifting movement or a combined lifting and pivoting movement. This measure can - without significant additional design effort - the mechanics for tilting driver's cabs with a flat front taken over who the, the position of the axis of rotation can be largely maintained.
Besonders vorteilhaft kann der Kabinenvorbau geteilt ausgeführt sein und einen unteren, feststehenden Kabinenvorbau im Bereich des Stoßfängers des Zugfahr zeugs aufweisen sowie einen oberen, anhebbaren Kabinenvorbau, der bis in den Bereich des unteren Randes einer Windschutzscheibe des Zugfahrzeugs reicht.Particularly advantageously, the cabin porch can be divided and have a lower, fixed cabin porch in the area of the bumper of the towing vehicle and an upper, raisable cabin porch that extends into the area of the lower edge of a windshield of the towing vehicle.
Gemäß einer vorteilhaften Ausführungsvariante der Erfindung kann der obere, Teil des Kabinenvorbaus mit diesem anhebbare Kühlerkomponenten des Zugfahr zeugs, wie Kühler, Kühlerventilator und Kühlmittelausgleichsgefäß, aufnehmen, wobei die Kühlerkomponenten flexible Anschlussleitungen für das Kühlmittel und die Energieversorgung aufweisen. Eine weitere Ausführungsvariante der Erfindung zeichnet sich dadurch aus, dass der Kabinenvorbau der Fahrerkabine mit diesem verschwenkbare Kühlerkompo nenten des Zugfahrzeugs aufnimmt, wobei die Kühlerkomponenten flexible An schlussleitungen für das Kühlmittel und die Energieversorgung aufweisen. According to an advantageous embodiment of the invention, the upper part of the cab extension can accommodate raisable cooler components of the towing vehicle, such as cooler, cooler fan and coolant expansion tank, with the cooler components having flexible connection lines for the coolant and the power supply. A further embodiment of the invention is characterized in that the front part of the driver's cab accommodates components of the towing vehicle with this pivotable cooler components, the cooler components having flexible connection lines for the coolant and the power supply.
Die Erfindung wird im Folgenden an Hand der in den Figuren gezeigten, nicht ein schränkenden Ausführungsbeispiele näher erläutert. Es zeigen: The invention is explained in more detail below with reference to the non-limiting exemplary embodiments shown in the figures. Show it:
Fig. 1 eine Fahrerkabine eines herkömmlichen Zugfahrzeugs mit einer ebenen Vorderfront in der Grundstellung; 1 shows a driver's cab of a conventional towing vehicle with a flat front in the basic position;
Fig. 2 die Fahrerkabine gemäß Fig. 1 in einer nach vorne gekippten Ser vicestellung; FIG. 2 shows the driver's cab according to FIG. 1 in a service position tilted forward; FIG.
Fig. 3 eine weitere Fahrerkabine eines herkömmlichen Zugfahrzeugs mit einem Kabinenvorbau in der Grundstellung; 3 shows another driver's cab of a conventional towing vehicle with a cab extension in the basic position;
Fig. 4 eine erste Ausführungsvariante einer erfindungsgemäßen Fahrerka bine eines Zugfahrzeugs mit einem Kabinenvorbau in der Grundstel lung; Fig. 4 shows a first embodiment of a driver's cab according to the invention of a towing vehicle with a cab extension in the basic position;
Fig. 5 die Fahrerkabine gemäß Fig. 4, bei der ein Teil des Kabinenvorbaus angehoben ist; FIG. 5 shows the driver's cab according to FIG. 4, in which part of the cab extension is raised;
Fig. 6 die Fahrerkabine gemäß Fig. 4 und Fig. 5 in einer nach vorne ge kippten Servicestellung; sowie FIG. 6 shows the driver's cab according to FIG. 4 and FIG. 5 in a service position tilted forward; as
Fig. 7 eine zweite Ausführungsvariante einer erfindungsgemäßen Fahrer kabine eines Zugfahrzeugs in der Grundstellung und der Servicestel lung, 7 shows a second embodiment variant of a driver's cab of a towing vehicle according to the invention in the basic position and the service position,
In den Fig. 1 und Fig. 2 ist eine Zugfahrzeug 10 (im dargestellten Beispiel eine SZM) mit einer im Wesentlichen ebenen Vorderfront der Fahrerkabine 12 gemäß Stand der Technik dargestellt, wobei hier die Vorderfront nur unwesentlich über die Windschutzscheibe 18 des Zugfahrzeugs 10 hinausragt. 1 and 2 show a towing vehicle 10 (in the example shown an SZM) with a substantially flat front of the driver's cab 12 according to the prior art, with the front protruding only slightly beyond the windshield 18 of the towing vehicle 10 here.
Die Fahrerkabine ist für Service- und Wartungszwecke aus einer Grundstellung für den Fährbetrieb (siehe Fig. 1) nach vorne kippbar am Fahrgestell 11 angelenkt, wobei die entsprechende Drehachse für die Fahrerkabine 12 mit 17 angedeutet ist (siehe Fig. 2: Servicestellung). For service and maintenance purposes, the driver's cab is articulated on the chassis 11 so that it can be tilted forward from a basic position for ferry operation (see FIG. 1), the corresponding axis of rotation for the driver's cab 12 being indicated at 17 (see FIG. 2: service position).
Fig. 3 zeigt nun ein weiteres Zugfahrzeug 10 gemäß Stand der Technik, wobei hier die Fahrerkabine 12 einen in Fahrtrichtung über die Ebene der Windschutzscheibe 18 vorstehenden Kabinenvorbau 13 aufweist, der auch Komponenten der Antriebs einheit aufnehmen kann. Ein Verkippen der Fahrerkabine 12 in eine Servicestel lung - unter Beibehaltung der Position der Drehachse 17 gemäß Fig. 2 - ist nun nicht mehr möglich, da der Kabinenvorbau 13 mit Teilen des Fahrgestells 11 kolli dieren würde. Eine Verlagerung der Drehachse nach weiter vorne ist nachteilig, da sich dadurch der mechanische Aufwand und der Platzbedarf für die Drehbewegung der Fahrerkabine 12 erhöhen. Fig. 3 now shows another towing vehicle 10 according to the prior art, in which case the driver's cab 12 is above the plane of the windshield in the direction of travel 18 has the above cab stem 13, which can also accommodate components of the drive unit. A tilting of the driver's cab 12 in a service position - while maintaining the position of the axis of rotation 17 shown in FIG. Shifting the axis of rotation further forward is disadvantageous, since this increases the mechanical complexity and the space required for the rotary movement of the driver's cab 12 .
Hier setzt nun die Erfindung ein, die in den Fig. 4 bis Fig. 6 in einer ersten Ausfüh rungsvariante anhand einer Sattelzugmaschine (SZM) skizziert ist. Gleiches gilt auch für einen LKW mit beliebigem Aufbau und einer nach vorne kippbaren Fah rerkabine 12. This is where the invention comes in, which is sketched in FIGS. 4 to 6 in a first embodiment variant using a tractor unit (SZM). The same also applies to a truck with any structure and a driver's cab 12 that can be tilted forward.
Die Antriebseinheit 24 ist in den einzelnen Ausführungsvarianten nur schematisch als Box dargestellt, wobei das erfindungsgemäße Konzept unabhängig vom An triebstyp ist. Die im Folgenden beschriebene Thermallösung kann für Verbren nungsmotoren (ICE, H2 ICE), Elektroantriebe (BEVs) und Brennstoffzellenantriebe (FCEV) gleichermaßen genutzt werden. The drive unit 24 is shown only schematically as a box in the individual variants, the concept according to the invention being independent of the drive type. The thermal solution described below can be used for internal combustion engines (ICE, H2 ICE), electric drives (BEVs) and fuel cell drives (FCEV) alike.
Erfindungsgemäß weist der Kabinenvorbau 13 der Fahrerkabine 12 einen Hebe mechanismus 16 auf, mit welchem der Kabinenvorbau 13 bzw. ein Teil des Kabi- nenvorbaus (siehe gemäß dargestelltem Beispiel der obere Teil 15 des Kabinen- vorbaus) in einer Hubbewegung oder einer kombinierten Hub- und Schwenkbewe gung in eine Servicestellung angehoben werden kann. According to the invention, the cab front end 13 of the driver's cab 12 has a lifting mechanism 16, with which the cab front end 13 or part of the cabin front end (see the example shown, the upper part 15 of the cab front end) can be lifted in a lifting movement or a combined lifting and lifting movement Swivel movement can be raised to a service position.
Bevorzugt kann der Kabinenvorbau 13 geteilt ausgeführt sein (siehe Teilungs ebene 19) und einen unteren, feststehenden Kabinenvorbau 14 im Bereich des Stoßfängers des Zugfahrzeugs 10 aufweisen sowie einen oberen, anhebbaren Ka binenvorbau 15, der bis in den Bereich des unteren Randes der Windschutzscheibe 18 des Zugfahrzeugs 10 reicht. Der feststehende Teil 14 des Kabinenvorbaus kann die Nummerntafelhalterung, die Lichtanlage und/oder den Stoßfänger des Zug fahrzeugs 10 aufnehmen. The cab extension 13 can preferably be divided (see dividing level 19) and have a lower, fixed cab extension 14 in the area of the bumper of the towing vehicle 10 and an upper, liftable cab extension 15, which extends into the area of the lower edge of the windshield 18 of the Towing vehicle 10 is enough. The fixed part 14 of the cab stem can accommodate the number plate holder, the lighting system and/or the bumper of the train vehicle 10 .
Durch das Anheben des Kabinenvorbaus 13 bzw. zumindest des oberen Teils 15 entsteht genügend Freiraum, um die Fahrerkabine 12 nach vorne in die Service stellung zu kippen, wobei die Position der Drehachse 17 beibehalten werden kann (siehe Fig. 5 und Fig. 6). Der konstruktive Aufwand sowie der Platzbedarf für die Drehbewegung können somit geringgehalten werden, bei optimalem Zugriff zur Antriebseinheit 24 in der Servicestellung (siehe Fig. 6). Im dargestellten Beispiel nimmt der obere Teil 15 des Kabinenvorbaus 13 Kühler komponenten 20 des Zugfahrzeugs 10, wie Kühler, Kühlerventilator und Kühlmit telausgleichsgefäß, auf, wobei die Kühlerkomponenten 20 flexible Anschlussleitun gen 23 für das Kühlmittel und die Energieversorgung aufweisen. By raising the cab extension 13 or at least the upper part 15, there is enough free space to tilt the driver's cab 12 forward into the service position, with the position of the axis of rotation 17 being able to be maintained (see Fig. 5 and Fig. 6). The design effort and the space required for the rotary movement can thus be kept low, with optimal access to the drive unit 24 in the service position (see FIG. 6). In the example shown, the upper part 15 of the cabin extension 13 takes on cooler components 20 of the towing vehicle 10, such as cooler, cooling fan and coolant expansion vessel, the cooler components 20 having flexible connection lines 23 for the coolant and the power supply.
Im gegenständlichen Ausführungsbeispiel weist der Hebemechanismus 20 paar weise an der Fahrerkabine 12 angelenkte Hebearme 21, 22 in Form eines Gelenk vierecks auf, wobei die Hebebewegung in nicht dargestellter Weise pneumatisch, hydraulisch oder elektromotorisch bewerkstelligt oder zumindest unterstützt wer den kann. In the present exemplary embodiment, the lifting mechanism 20 has pairs of lifting arms 21, 22 articulated on the driver's cab 12 in the form of a four-bar linkage, the lifting movement being effected pneumatically, hydraulically or by an electric motor in a manner not shown, or at least supported by those who can.
Bevorzugt können die flexiblen Anschlussleitungen 23 für das Kühlmittel und die Energieversorgung entlang der Hebearme 21, 22 geführt und zumindest teilweise daran befestigt sein. Weiters ist es möglich, für die flexiblen Anschlussleitungen 23 für das Kühlmittel und die Energieversorgung separate Führungs- und Unter stützungsstrukturen vorzusehen, oder die flexiblen Anschlussleitungen 23 zumin dest teilweise in den Hebearmen 21, 22 zu führen oder in diese zu integrieren.The flexible connecting lines 23 for the coolant and the energy supply can preferably be guided along the lifting arms 21, 22 and at least partially attached thereto. It is also possible to provide separate guide and support structures for the flexible connection lines 23 for the coolant and the energy supply, or to guide the flexible connection lines 23 at least partially in the lifting arms 21, 22 or to integrate them into them.
Wie in den Fig. 5 und Fig. 6 dargestellt, können die Hebearme 21, 22 in Form einer Trapezführung an der Fahrerkabine 12 angelenkt sein, derart, dass der obere Kabinenvorbau 15 in der angehobenen Servicestellung von der Windschutzscheibe 18 des Zugfahrzeugs 10 in einem spitzen Winkel weggekippt ist. As shown in FIGS. 5 and 6, the lifting arms 21, 22 can be articulated in the form of a trapezoidal guide on the driver's cab 12 in such a way that the upper cab extension 15 in the raised service position projects from the windshield 18 of the towing vehicle 10 at a point angle has tilted away.
Es wäre allerdings auch möglich, dass die Hebearme 21, 22 in Form einer Paral lelführung an der Fahrerkabine 12 angelenkt sind (nicht dargestellt), derart, dass der obere Kabinenvorbau 15 in der angehobenen Servicestellung parallel zur Grundstellung ausgerichtet ist. However, it would also be possible for the lifting arms 21, 22 to be articulated in the form of a parallel guide on the driver's cab 12 (not shown), such that the upper cab extension 15 is aligned parallel to the basic position in the raised service position.
Schließlich zeigt Fig. 7 eine zweite Ausführungsvariante der Erfindung, mit einem nach vorne, unten, um eine Achse 25 verschwenkbaren Kabinenvorbau 13, wobei der Kabinenvorbau 13 mit diesem verschwenkbare Kühlerkomponenten 20 des Zugfahrzeugs 10, wie Kühler, Kühlerventilator und Kühlmittelausgleichsgefäß, auf nimmt. Nach der Verschwenkung des Kabinenvorbaus 13, kann die Fahrerkabine 12 um deren Drehachse 17 aus der Grundstellung in die Servicestellung (siehe Fahrerkabine 12') gekippt werden. Die Kühlerkomponenten 20 weisen flexible An schlussleitungen 23 für das Kühlmittel und die Energieversorgung auf. Finally, Fig. 7 shows a second embodiment variant of the invention, with a front cabin 13 that can be pivoted forwards and downwards about an axis 25, with the cabin front 13 accommodating pivotable radiator components 20 of the towing vehicle 10, such as the radiator, radiator fan and coolant expansion tank. After the cab extension 13 has been pivoted, the driver's cab 12 can be tilted about its axis of rotation 17 from the basic position into the service position (see driver's cab 12'). The cooler components 20 have flexible connection lines 23 to the coolant and the power supply.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Fahrerkabine (12) eines Zugfahrzeugs (10), beispielsweise einer Sattelzug maschine (SZM) oder eines Lastkraftwagens (LKW), die für Service- und War tungszwecke nach vorne kippbar am Fahrgestell (11) des Zugfahrzeugs (10) angelenkt ist, wobei die Fahrerkabine (12) einen in Fahrtrichtung vorstehen den, verschwenkbaren Kabinenvorbau (13) aufweist, dadurch gekennzeichnet, dass der Kabinenvorbau (13) einen Hebemechanismus (16) auf weist, mit welchem der Kabinenvorbau (13) bzw. ein Teil (15) des Kabinen- vorbaus (13) in einer Hubbewegung oder einer kombinierten Hub- und Schwenkbewegung in eine Servicestellung anhebbar ist. 1. Driver's cab (12) of a towing vehicle (10), for example a semi-trailer tractor (SZM) or a truck (lorry), which can be tilted forward for service and maintenance purposes on the chassis (11) of the towing vehicle (10) is articulated, wherein the driver's cab (12) has a cab extension (13) that projects in the direction of travel, characterized in that the cab extension (13) has a lifting mechanism (16) with which the cab extension (13) or a part (15) of the Cabin stem (13) can be raised into a service position in a lifting movement or a combined lifting and pivoting movement.
2. Fahrerkabine (12) nach Anspruch 1, dadurch gekennzeichnet, dass der Kabinenvorbau (13) geteilt ausgeführt ist und einen unteren, feststehenden Kabinenvorbau (14) im Bereich des Stoßfängers des Zugfahrzeugs (10) auf weist sowie einen oberen, anhebbaren Kabinenvorbau (15), der bis in den Bereich des unteren Randes einer Windschutzscheibe (18) des Zugfahrzeugs (10) reicht. 2. Driver's cab (12) according to claim 1, characterized in that the cab extension (13) is divided and has a lower, fixed cab extension (14) in the area of the bumper of the towing vehicle (10) and an upper, liftable cab extension (15 ), which extends into the area of the lower edge of a windshield (18) of the towing vehicle (10).
3. Fahrerkabine (12) nach Anspruch 2, dadurch gekennzeichnet, dass der obere Kabinenvorbau (15) Kühlerkomponenten (20) des Zugfahrzeugs (10), wie Kühler, Kühlerventilator und Kühlmittelausgleichsgefäß, aufnimmt, wobei die Kühlerkomponenten (20) flexible Anschlussleitungen (23) für das Kühl mittel und die Energieversorgung aufweisen. 3. Driver's cab (12) according to Claim 2, characterized in that the upper cab extension (15) accommodates cooler components (20) of the towing vehicle (10), such as the cooler, cooler fan and coolant expansion tank, the cooler components (20) having flexible connection lines (23) have for the coolant and the power supply.
4. Fahrerkabine (12) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Hebemechanismus (16) paarweise an der Fahrerkabine (12) angelenkte Hebearme (21, 22) in Form eines Gelenkvierecks aufweist, wobei die Hebebewegung pneumatisch, hydraulisch oder elektromotorisch unterstützt oder aktuiert ist. 4. Driver's cab (12) according to one of Claims 1 to 3, characterized in that the lifting mechanism (16) has lifting arms (21, 22) articulated in pairs on the driver's cab (12) in the form of a four-bar linkage, the lifting movement being pneumatic, hydraulic or is supported or actuated by an electric motor.
5. Fahrerkabine (12) nach Anspruch 4, dadurch gekennzeichnet, dass die fle xiblen Anschlussleitungen (23) für das Kühlmittel und die Energieversorgung entlang der Hebearme (21, 22) geführt und zumindest teilweise daran be festigt sind. 5. Driver's cab (12) according to claim 4, characterized in that the fle xible connection lines (23) for the coolant and the power supply along the lifting arms (21, 22) out and at least partially be fastened to it.
6. Fahrerkabine (12) nach Anspruch 4, dadurch gekennzeichnet, dass für die flexiblen Anschlussleitungen (23) für das Kühlmittel und die Energieversor gung separate Führungs- und Unterstützungsstrukturen aufweisen 6. Driver's cab (12) according to claim 4, characterized in that for the flexible connection lines (23) for the coolant and the power supply have separate management and support structures
7. Fahrerkabine (12) nach Anspruch 4, dadurch gekennzeichnet, dass die fle xiblen Anschlussleitungen (23) für das Kühlmittel und die Energieversorgung zumindest teilweise in den Hebearmen (21, 22) geführt sind. 7. Driver's cab (12) according to claim 4, characterized in that the flexible connection lines (23) for the coolant and the energy supply are at least partially guided in the lifting arms (21, 22).
8. Fahrerkabine (12) nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Hebearme (21, 22) in Form einer Trapezführung an der Fahrerkabine (12) angelenkt sind, derart, dass der obere Kabinenvorbau (15) in der angehobenen Servicestellung von der Windschutzscheibe (18) des Zug fahrzeugs (10) weggekippt ist. 8. Driver's cab (12) according to any one of claims 4 to 7, characterized in that the lifting arms (21, 22) are articulated in the form of a trapezoidal guide on the driver's cab (12) such that the upper cab extension (15) in the raised Service position of the windshield (18) of the towing vehicle (10) is tilted away.
9. Fahrerkabine nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass die Hebearme (21, 22) in Form einer Parallelführung an der Fahrerka bine (12) angelenkt sind, derart, dass der obere Kabinenvorbau (15) in der angehobenen Servicestellung parallel zu seiner Grundstellung ausgerichtet ist. 9. Driver's cab according to one of claims 4 to 7, characterized in that the lifting arms (21, 22) are articulated in the form of a parallel guide on the driver's cab (12) such that the upper cab extension (15) is parallel in the raised service position aligned to its basic position.
10. Fahrerkabine (12) eines Zugfahrzeugs (10), beispielsweise einer Sattelzug maschine (SZM) oder eines Lastkraftwagens (LKW), die für Service- und War tungszwecke nach vorne kippbar am Fahrgestell (11) des Zugfahrzeugs (10) angelenkt ist, wobei die Fahrerkabine (12) einen in Fahrtrichtung vorstehen den, verschwenkbaren Kabinenvorbau (13) aufweist, dadurch gekennzeichnet, dass der Kabinenvorbau (13) mit diesem verschwenkbare Kühler komponenten (20) des Zugfahrzeugs (10), wie Kühler, Kühlerventilator und Kühlmittelausgleichsgefäß, aufnimmt, wobei die Kühlerkomponenten (20) flexible Anschlussleitungen (23) für das Kühlmittel und die Energieversorgung aufweisen. 10. Driver's cab (12) of a towing vehicle (10), for example a tractor-trailer (SZM) or a truck (LKW), which is articulated on the chassis (11) of the towing vehicle (10) so that it can be tilted forward for service and maintenance purposes, wherein the driver's cab (12) has a pivotable cab extension (13) that projects in the direction of travel, characterized in that the cab extension (13) accommodates pivotable cooler components (20) of the towing vehicle (10), such as the cooler, cooler fan and coolant expansion tank, with this, wherein the cooler components (20) have flexible connection lines (23) for the coolant and the energy supply.
PCT/AT2022/060231 2021-06-30 2022-06-30 Driver's cab of a tractor vehicle WO2023272328A1 (en)

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