EP4029994A1 - Véhicule d'entretien des pistes - Google Patents

Véhicule d'entretien des pistes Download PDF

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Publication number
EP4029994A1
EP4029994A1 EP22151046.4A EP22151046A EP4029994A1 EP 4029994 A1 EP4029994 A1 EP 4029994A1 EP 22151046 A EP22151046 A EP 22151046A EP 4029994 A1 EP4029994 A1 EP 4029994A1
Authority
EP
European Patent Office
Prior art keywords
coupling
coupling device
hydraulic
snow groomer
attachment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22151046.4A
Other languages
German (de)
English (en)
Other versions
EP4029994B1 (fr
Inventor
Claudius Henger
Daniel Hartmann
Andreas Behmüller
Sven HOLZAPFEL
Martin Mangold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
Original Assignee
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
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 Kassbohrer Gelandefahrzeug AG, Kaessbohrer Gelaendefahrzeug AG filed Critical Kassbohrer Gelandefahrzeug AG
Publication of EP4029994A1 publication Critical patent/EP4029994A1/fr
Application granted granted Critical
Publication of EP4029994B1 publication Critical patent/EP4029994B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
    • E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails

Definitions

  • the invention relates to a piste maintenance vehicle with an elongate support frame, a crawler chassis mounted on the support frame, an adjusting device mounted on the front or rear of the support frame, an attachment coupled to the adjusting device, which is set up for maintaining and/or processing a snow piste and by means of an adjusting movement of the Adjusting device is displaceable relative to the support frame, and with a power supply device that is set up to supply the crawler track gear and / or the attachment with operating energy.
  • Such a snow grooming vehicle is generally known and is intended for the maintenance and/or treatment of snow-covered ski or snowboard slopes.
  • the well-known piste maintenance vehicle has an elongate support frame on which a tracked undercarriage and an adjusting device are mounted.
  • the adjusting device is designed in the form of a rear implement carrier arranged at the rear on the support frame.
  • An attachment is coupled to the rear implement carrier.
  • the attachment can be displaced relative to the support frame by means of an actuating movement of the actuating device.
  • the attachment can be exchanged depending on the intended use of the snow groomer.
  • the coupling and decoupling to and from the adjusting device required for replacing the attachment must be carried out manually by an operator in the known snow groomer vehicle. If the attachment is driven electrically and/or hydraulically, corresponding electrical and/or hydraulic couplings must also be connected and disconnected manually.
  • the object of the invention is to provide a snow groomer of the type mentioned at the outset that can be used as injury-proof, cost-effectively and flexibly as possible.
  • a quick coupling system is provided with a first coupling device mounted on the actuating device and a second coupling device mounted on the attachment, the quick coupling system being able to be switched without tools between a coupling state in which the first coupling device and the second coupling device are mechanically coupled to one another are, and a disconnected state in which the coupling is released.
  • manual coupling and decoupling of the attachment which is often time-consuming and prone to injury, can be dispensed with. This saves working time and the associated personnel costs.
  • a with the manual pairing avoid the inherent risk of injury.
  • the solution according to the invention allows a particularly flexible use of the snow groomer.
  • the quick-coupling system can be switched between the coupled state and the separated state without tools.
  • tools In the context of this description, "tool-free" means without direct manual intervention by an operator.
  • the quick coupling system can preferably be switched between the coupled and the disconnected state by means of an actuating movement of the actuating device.
  • the first coupling device is mounted on the actuating device.
  • the second coupling device is mounted on the attachment.
  • the first coupling device can be adjusted relative to the second coupling device by means of an adjusting movement of the adjusting device.
  • the second coupling device is preferably immovably mounted relative to the attachment on the same.
  • the first coupling device and the second coupling device are releasably coupled to one another in a positive and/or non-positive manner. Consequently, the attachment is supported indirectly, namely by means of the quick-coupling system, load-bearing on the actuating device.
  • the connection between the first coupling device and the second coupling device is released.
  • an electrical and/or hydraulic coupling can take place.
  • the adjusting device can also be referred to as a front or rear implement carrier.
  • the adjusting device preferably has a kinematic system formed from a plurality of adjusting cylinders.
  • the adjusting cylinders are preferably hydraulic cylinders.
  • the adjusting device is preferably designed in such a way that the attachment can be adjusted translationally in the vertical direction, longitudinal direction and/or transverse direction relative to the support frame by means of an adjusting movement of the adjusting device.
  • the adjusting device is preferably designed in such a way that the attachment can be pivoted, tilted and/or tilted in rotation by means of an adjusting movement of the adjusting device.
  • the attachment is preferably a front blade, a park blade, a rear tiller or the like.
  • the attachment can preferably be driven electrically and/or hydraulically.
  • the energy supply device provides the operating energy required to operate the snow groomer, in particular the tracked chassis and/or the attachment.
  • the operating energy can be provided mechanically, electrically and/or hydraulically.
  • the directional and orientation information used in this description refers to an imaginary state in which the piste grooming vehicle is parked on a horizontal, slope-free snow piste.
  • the first coupling device and the second coupling device are designed to be coordinated with one another in such a way that they can be positively coupled to one another and separated from one another without tools.
  • This configuration is structurally simple, in particular in comparison to a configuration that can be coupled in a non-positive manner.
  • the two coupling devices preferably have bearing sections of complementary design, which can be contacted against one another by means of an adjusting movement of the adjusting device to form the form-fitting connection.
  • the first coupling device has a first bearing section
  • the second coupling device has a second bearing section
  • the quick coupling system can be transferred from the disconnected state to a receiving state in which the second bearing section is positively supported on the first bearing section against the force of gravity and together with the first bearing section forms a pivot bearing arrangement which can be pivoted about a pivot axis.
  • the two bearing sections are preferably designed to be complementary to one another and allow positive force transmission along at least one direction of movement of the adjustment movement that can be carried out by means of the adjustment device. In the separated state, the two bearing sections are spaced apart from one another. In the receiving state, the two bearing sections are in contact with one another.
  • the first bearing section reaches under the second bearing section, so that the latter is supported on the first bearing section against the force of gravity, i.e. in the vertical direction from top to bottom.
  • the attachment is raised with the actuating device, with the force transmission required for this taking place in a form-fitting manner via the bearing sections of the quick coupling system. Since the bearing sections--in the recording state--at the same time ensure pivoting mobility about the pivot axis, further lifting against the force of gravity causes the attachment to pivot relative in the direction of the adjusting device.
  • the pivot axis is preferably oriented parallel to the transverse direction.
  • the adjustment movement for picking up the attachment is preferably oriented perpendicularly to the transverse direction.
  • the first bearing section has at least one hook element
  • the second bearing section has at least one rod element which extends longitudinally in the transverse direction, or vice versa.
  • This configuration is structurally particularly simple and robust.
  • two are transversely spaced from each other arranged hook elements provided.
  • the at least one hook element is positioned below the at least one rod element and then moved upwards. This in turn takes place by means of a corresponding activation of the actuating device.
  • the at least one rod element has a circular-cylindrical cross-section and is supported on the at least one hook element so that it can slide about the pivot axis in the receiving state.
  • the rod element extends longitudinally in the transverse direction and forms the pivot axis of the pivot bearing arrangement formed together with the at least one hook element.
  • first bearing section and the second bearing section are arranged on an upper front end of the respective coupling device in the vertical direction. This ensures, in particular, good visibility for the operator. This supports a targeted positioning of the adjusting device and thus the first coupling device for coupling the attachment.
  • the first coupling device has a first flange section
  • the second coupling device has a second flange section
  • the two flange sections being spaced apart from one another in the receiving state and, starting from the receiving state, can be contacted with one another by means of a relative pivoting movement of the two coupling devices about the pivot axis are.
  • the two flange sections In the coupled state, the two flange sections preferably lie flat against one another. This ensures reliable power transmission between the two coupling devices and thus between the adjusting device and the attachment.
  • the first flange section and the second flange section are each aligned perpendicular to the pivot axis. Accordingly, the normal directions of the two flange sections--in the coupled state--are opposite to one another and are each oriented perpendicularly to the pivot axis. In this way, in particular, a further improved power transmission between the two coupling devices is achieved.
  • the first flange section and the second flange section are arranged below the respective bearing section on the respective coupling device. Such an arrangement is present at least in the coupled state.
  • the statement "below” is to be understood in relation to the vertical direction and/or the effective direction of gravity.
  • the first flange portion is located below the first bearing portion.
  • the second flange portion is located below the second bearing portion.
  • the quick coupling system has a locking device for positively locking the coupling state.
  • the locking device is preferably arranged partially on the first coupling device and partially on the second coupling device.
  • the locking device counteracts an unintentional disconnection of the coupled state.
  • the locking in particular prevents an unwanted relative pivoting movement between the two coupling devices about the pivot axis of the pivot bearing arrangement formed by the bearing sections.
  • the second coupling device has at least two locking openings located opposite one another and the first coupling device has at least two locking elements located opposite one another, the locking elements being adjustable by means of an actuating element mounted floating between the locking elements in order to interact with the locking openings.
  • the locking elements are each designed as a bolt element, with the locking openings being designed as complementary bolt receptacles.
  • the floating actuator is preferably a hydraulic cylinder.
  • the adjusting movement of the adjusting element is preferably oriented parallel to the transverse direction.
  • the quick coupling system has a hydraulic quick coupling for tool-free hydraulic connection of the attachment to the energy supply device.
  • manual coupling and uncoupling of the hydraulic connection between the attachment and the energy supply device is common.
  • Appropriate screw or plug-in couplings are usually provided for this purpose.
  • This embodiment of the invention means that time-consuming manual coupling and uncoupling of the hydraulic connection between the attachment and the energy supply device can be dispensed with.
  • the hydraulic quick coupling can preferably be connected and released by means of a transfer of the quick coupling system between the coupled and the disconnected state.
  • the hydraulic quick coupling is set up to transmit a hydraulic pressure of between 250 bar and 450 bar and a hydraulic volume flow of between 160 l/m and 200 l/m.
  • the hydraulic quick coupling allows hydraulic energy to be transmitted at relatively high pressures with relatively high volume flows at the same time. Comparatively high hydraulic pressures and volume flows are required for the operation of attachments for slope maintenance and/or processing, such as snow blowers, for example, in comparison to attachments from agriculture and/or forestry.
  • the quick coupling is set up accordingly in this embodiment of the invention.
  • the first coupling device has a first hydraulic coupling unit
  • the second coupling device has a second hydraulic coupling unit and the two hydraulic coupling units can be connected to one another in a fluid-conducting manner and separated from one another by means of a transfer of the quick coupling system between the coupling and the disconnected state without tools.
  • the first hydraulic coupling unit and the second hydraulic coupling unit form the hydraulic quick coupling.
  • the two clutch units each have corresponding clutch elements which are designed in a complementary manner between the two clutch units.
  • first hydraulic coupling unit and the second hydraulic coupling unit can be connected to one another and separated from one another solely by means of the relative pivoting movement of the two coupling devices about the pivot axis. Accordingly, no separate adjusting movement and/or actuators are required to establish and release the hydraulic connection.
  • this embodiment of the invention achieves a hydraulic connection of the attachment at the same time as the mechanical connection.
  • a mechanical decoupling is accompanied by a simultaneous release of the hydraulic connection. This achieves a simplified structure. This allows a further cost reduction.
  • the first hydraulic clutch unit is aligned perpendicularly to the first flange section and the second hydraulic clutch unit is aligned perpendicularly to the second flange section.
  • a connection direction of the hydraulic quick connector is oriented perpendicularly to the pivot axis and perpendicularly to the flange portions.
  • the quick coupling system has an electrical quick coupling for tool-free electrical connection of the attachment with the power supply device.
  • the electrical quick coupling can preferably be connected and disconnected by means of a transfer of the quick coupling system between the coupled and the disconnected state.
  • the first coupling device has a first electrical energy transmission unit
  • the second coupling device has a second electrical energy transmission unit
  • the two electrical energy transmission units are set up for contactless, induction-based energy transmission.
  • the two electrical energy transmission units are arranged opposite one another and spaced apart from one another by an air gap.
  • the separated state the two energy transmission units are spatially separated from one another in such a way that no induction-based energy transmission can take place. This refinement enables energy transmission to be particularly robust and insensitive to environmental influences.
  • the attachment is a rear tiller with a supporting structure and a milling shaft rotatably mounted on the supporting structure, with the second coupling device being mounted on the supporting structure.
  • the milling shaft can preferably be driven hydraulically. Alternatively, an electric drive for the milling shaft can be provided.
  • the support structure is preferably designed as a bolted and/or welded frame construction.
  • the second coupling device is preferably immovably mounted on the support structure by means of a plurality of screw connections. More preferably, the second coupling device protrudes in the vertical direction from an upper side of the support structure.
  • the second coupling device is mounted on the support frame with limited elastic flexibility and vibration damping by means of a vibration bearing arrangement.
  • a qualitatively improved care and/or processing result is made possible in particular by the limited elastically yielding and vibration-damping connection. This is because the vibration bearing arrangement reduces, in particular, unwanted transmission of vibrations to the rear tiller.
  • a piste maintenance vehicle 1 for the maintenance of a schematically indicated snow piste P.
  • the snow groomer 1 can also be referred to as a snow groomer.
  • the snow slope P is a ski and/or snowboard slope.
  • the snow groomer 1 has a vehicle body, which is fundamentally known as such, with a support frame 2 extending longitudinally in the longitudinal direction X, a crawler chassis 3 arranged on the underside of the support frame 2 and an adjusting device 4 arranged on the rear of the support frame 2 .
  • an attachment 5 is coupled to the adjusting device 4 and can be displaced into different functional positions relative to the support frame 2 by means of an adjusting movement of the adjusting device 4 .
  • the attachment 5 is set up for maintaining and/or processing the snow slope P and is designed as a rear tiller 6 in the embodiment shown.
  • the snow groomer 1 also has an energy supply device 7 which is set up to supply the tracked chassis 3 and the rear tiller 6 with operating energy and which, in the embodiment shown, comprises a diesel unit 8 concealed under a cover which is not specified in more detail.
  • the energy supply device 7 includes a hydraulic system 9 (not shown in detail) and an on-board electrical system 10.
  • the crawler chassis 3, the actuating device 4 and the rear tiller 6 are connected at least to the hydraulic system 9 in a manner known to those skilled in the art.
  • a hydrostatic drive of the tracked undercarriage 3 a hydraulic adjusting mobility of the adjusting device 4 and a hydraulic drive of the rear tiller 6 are provided in the present case.
  • partial or even complete electrical operation of the snow groomer 1 can be provided instead.
  • the snow groomer 9 has an adjusting device 4' mounted at the front on the support frame 2 and a further attachment 5'.
  • the additional attachment 5′ is designed as a clearing blade and can be shifted into different functional positions relative to the support frame 2 in a basically known manner by means of an adjusting movement of the front-side adjusting device 4′.
  • the snow groomer 1 has a driver's cab 11 mounted on the support frame 2 in the longitudinal direction X behind the front adjusting device 4 and in the vertical direction Z above the tracked undercarriage 3 .
  • the attachments 5, 5′ can be exchanged for other attachments depending on the intended use and work task of the snow groomer 1 and can be disconnected from and coupled to the respective adjusting device 4, 4′ for this purpose.
  • the attachments are usually coupled and uncoupled manually and using tools.
  • screw and/or bolt connections between the actuating device and the respective attachment must be loosened manually.
  • Manual docking and docking can be labor intensive and injury prone.
  • the snow groomer 1 in the embodiment shown has a quick coupling system S, at least in the area of the rear adjusting device 4 and the rear attachment 5 2 and 5 can be seen in detail.
  • the quick coupling system S is indicated only schematically.
  • the quick-coupling system S allows the attachment 5 to be coupled to and decoupled from the actuating device 4 without tools.
  • decoupling the attachment 5 in contrast to the prior art, this means that a mechanical, hydraulic and/or electrical connection between the actuating device and the attachment can be manually released be waived. The same applies to the coupling of the attachment 5.
  • the quick coupling system S has a first coupling device 12 ( 3 ) and a second coupling device 13 ( 4 ) on.
  • the first coupling device 12 is mounted on the actuating device 4 in a manner that will be described in more detail below.
  • the second coupling device 13 is mounted on the attachment 5 in a manner that will be described in more detail below.
  • the first coupling device 12 has a base body 14 which is made of steel and designed as a welded construction. Further parts, components and/or sections of the first coupling device 12 are arranged and/or formed on the base body 14 .
  • the first coupling device 12 has a first bearing section 15, a first flange section 16, a first hydraulic clutch unit 17, a first electrical energy transmission unit 18 ( 6 ) and a bolt receptacle 19.
  • the first bearing section 15 is arranged on a front end of the base body 14 opposite the bolt receptacle 19 .
  • the first bearing section 15 is intended to interact with a complementary bearing section of the second coupling device 13 in a manner that will be described in more detail below.
  • the first bearing section 15 has two hook elements 20 arranged spaced apart from one another in the transverse direction Y. These protrude - in relation to the plane of the drawing 3 - In the vertical direction from a top of the base body 14 on.
  • the bolt receptacle 19 is arranged at the other end of the base body 14 and in the present case has two bolt eyes 21 arranged spaced apart from one another in the transverse direction Y.
  • the first coupling device 12 is connected to the adjusting device 4 by means of the bolt receptacles 19, 22 and can in particular be pivoted about a pivot axis S1.
  • the pivot axis S1 extends parallel to the transverse direction Y.
  • a hydraulic actuating cylinder 23 engages Adjusting device 4 via a bolt 24 on the bolt receptacle 19.
  • a further hydraulic cylinder which cannot be seen in any more detail, can act on the first coupling device 12 in the area of the further bolt receptacle 22 .
  • the first flange portion 16 is - with respect to the plane of the 3 - Formed on the base body 14 above the bolt receptacle 19 and below the first bearing section 15 .
  • the first flange section 16 interacts with a complementary flange section of the second coupling device 13 in a manner that will be described in more detail below.
  • the second coupling device 13 has a base body 24 . In the present case, this is manufactured as a welded construction made of steel. Further components, parts and/or sections of the second coupling device 13 are arranged and/or formed on the base body 24 . Furthermore, the second coupling device 13 in the present case has a second bearing section 25, a second flange section 26, a second hydraulic clutch unit 27 and a second electrical energy transmission unit 28 ( 7 ).
  • the second bearing portion 25 is at a - with respect to the plane of the 4 - Arranged upper front end of the body.
  • the second bearing section 25 has a rod element 19 which extends longitudinally in the transverse direction and has a circular-cylindrical cross-section.
  • the second flange section 26 is arranged in the vertical direction Z below the second bearing section 25 and below the second hydraulic clutch unit 27 in the area of a lower front end of the base body 24 .
  • the second coupling device 13 is arranged on an upper side of the rear tiller 6 in the operationally assembled state and is joined to a support structure 30 of the rear tiller 6 .
  • the support structure 30 is designed as a tubular frame construction. Basically, a rigid attachment of the second coupling device 13 to the support structure 30 by means of appropriate fasteners is possible.
  • a vibration-damped attachment of the second coupling device 13 is provided.
  • a vibration bearing arrangement 31, 32 is arranged between the supporting structure 30 and the base body 24.
  • the vibration bearing arrangement has two spring-damper units 31, which are each supported on the supporting structure 30 at one end and on the base body 24 at the other end and are screwed on accordingly. Based 7 only one of the two spring-damper units 31 can be seen.
  • the vibration bearing arrangement 31, 32 has two elastomer elements 32, which are each attached to the support structure 30 at one end and to the base body 24 at the other end are supported and bolted accordingly. Based 7 again only one of the two elastomer elements 32 can be seen.
  • the second coupling device 13 has two support arms 33 which protrude laterally outwards in the transverse direction Y and downwards in the vertical direction Z and are each welded to the base body 24 .
  • two supporting plates 34 which protrude laterally outwards in the transverse direction are welded to the base body 24 and by means of which the second coupling device 13 is supported on the supporting structure 30 via the elastomer elements 32 . Based 4 only one of the support plates 34 can be seen.
  • the second hydraulic clutch unit 27 is arranged below the second bearing section 25 and above the second flange section 26 in the vertical direction Z.
  • the two hydraulic coupling units 17, 27 form a hydraulic quick coupling 17, 27.
  • the hydraulic quick coupling 17, 27 can also be referred to as a hydraulic quick coupling system.
  • the first hydraulic clutch unit 17 is fluidly connected to the hydraulic system 9 of the energy supply device 7 .
  • hose lines that are not shown in detail are provided and connected at the rear to corresponding line receptacles of the first hydraulic clutch unit 17 .
  • the second hydraulic clutch unit 27 is connected in a fluid-conducting manner to a hydraulic line system of the rear tiller 6 (not shown in more detail).
  • the hydraulic line system of the rear tiller 6 feeds in particular a hydrostatic drive of a tiller shaft 35 which is rotatably mounted on the support structure 30 about an axis of rotation extending parallel to the transverse direction Y.
  • the basic manner of the fluid-conducting connection of the two hydraulic clutch units 17, 27 to corresponding hoses or pipelines is known as such. The same applies analogously to the basic establishment and separation of the hydraulic connection between the two clutch units 17, 27.
  • the rear tiller 6 together with the second coupling device 13 mounted thereon is parked on the snow slope P away from the rest of the snow grooming vehicle.
  • the rear tiller 6 is mechanically, hydraulically and/or electrically separated from the rest of the structure of the snow groomer, in particular the first coupling device 12 .
  • the first coupling device 12 is shifted in the direction of the second coupling device 13.
  • the displacement of the first coupling device 12 takes place via an adjusting movement of the adjusting device, which may result in a travel movement of the Can precede crawler gear for rough positioning.
  • the adjusting device 4 is initially controlled in such a way that the two hook elements 20 are arranged in the vertical direction Z below the rod element 29 and in the transverse direction Y in alignment with it.
  • the first coupling device 12 is then displaced upwards in the vertical direction Z relative to the second coupling device 13 .
  • This displacement can take place, for example, by means of a pivotable adjusting movement about the pivot axis S1.
  • the hook elements 20 reach under the rod element 29.
  • the second coupling device 13 together with the rear tiller 6 is at least partially supported on the hook elements 20 against the force of gravity via the rod element 29.
  • This state can also be referred to as the recording state.
  • the second coupling device 13 together with the rear tiller 6 is raised in the vertical direction Z by a further adjustment movement about the pivot axis S1.
  • the hook elements 20 and the rod element 29 form a pivot bearing arrangement 20, 29.
  • the pivot bearing arrangement allows a relative pivoting movement of the two coupling devices 12, 13 about a pivot axis S2, which is oriented parallel to the pivot axis S1.
  • the two pivot axes S1, S2 can also be referred to as first pivot axis S1 and second pivot axis S2.
  • the quick-coupling system S has a locking device 36, which is based in particular on the Figures 8 and 9 is shown.
  • the locking device has two locking openings 37 arranged opposite one another in the transverse direction Y, which in the present case are arranged on the second coupling device 13 and are formed on the base body 24 thereof.
  • the locking device 36 has two opposite one another in the transverse direction Y Locking elements 38 which, in the embodiment shown, are arranged on the first coupling device 12 such that they can be adjusted relative to the base body 14 by means of an adjusting element 39 .
  • the adjusting element 39 is mounted in a floating manner between the two locking elements 38 and acts on one of the locking elements 38 on both sides.
  • the actuating element 39 is designed as a hydraulic cylinder and is connected to the hydraulic system 9 .
  • the locking elements 38 are displaced outwards, opposite one another, in the transverse direction Y through the respective locking opening 37 .
  • the form fit achieved in this way counteracts an unwanted relative pivoting of the two coupling devices 12, 13 about the second pivot axis S2.
  • the said form closure is cancelled.
  • the actuating element 39 like the actuating elements of the actuating device 4, in particular the hydraulic cylinder 23, can be controlled centrally and starting from the driver's cab 11. The entire coupling and uncoupling process can be controlled from the driver's cab 11 without the operator having to manually intervene directly in the area of the actuating device 4 or the attachment 5 .
  • the two electrical energy transmission units 18, 28 already described form an electrical quick coupling 18, 28.
  • This is set up in a fundamentally known manner for the contactless, induction-based transmission of electrical energy.
  • the basic functioning and design of the electrical quick coupling 18, 28 is known as such, so that further explanations in this regard can be dispensed with.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Agricultural Machines (AREA)
EP22151046.4A 2021-01-13 2022-01-11 Véhicule d'entretien des pistes Active EP4029994B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021200268.4A DE102021200268A1 (de) 2021-01-13 2021-01-13 Pistenpflegefahrzeug

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EP4029994A1 true EP4029994A1 (fr) 2022-07-20
EP4029994B1 EP4029994B1 (fr) 2023-10-25

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1329559A2 (fr) * 2002-01-08 2003-07-23 Thomas Sauer Dispositif d'attache rapide pour engins de travail
EP2248952A1 (fr) * 2009-05-06 2010-11-10 Rheinmetall Landsysteme GmbH Véhicule à roues ou à chenilles doté d'une installation de rangement et/ou de support agencée sur le véhicule
DE102015216060A1 (de) * 2015-08-21 2017-02-23 Mts Maschinentechnik Schrode Ag Verbindungsanordnung
EP3608150A1 (fr) 2018-08-07 2020-02-12 Kässbohrer Geländefahrzeug AG Engin de damage de pistes doté d'un train de roulement à chenille
EP3699362A1 (fr) * 2019-02-21 2020-08-26 Geel Vermietungs- und Beteiligungs GmbH Système de couplage destiné au couplage interchangeable d'un appareil isolé avec une machine de travail
DE102019104852A1 (de) * 2019-02-26 2020-08-27 Aebi Schmidt Deutschland Gmbh Sondernutzfahrzeug

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1329559A2 (fr) * 2002-01-08 2003-07-23 Thomas Sauer Dispositif d'attache rapide pour engins de travail
EP2248952A1 (fr) * 2009-05-06 2010-11-10 Rheinmetall Landsysteme GmbH Véhicule à roues ou à chenilles doté d'une installation de rangement et/ou de support agencée sur le véhicule
DE102015216060A1 (de) * 2015-08-21 2017-02-23 Mts Maschinentechnik Schrode Ag Verbindungsanordnung
EP3608150A1 (fr) 2018-08-07 2020-02-12 Kässbohrer Geländefahrzeug AG Engin de damage de pistes doté d'un train de roulement à chenille
DE102018213239A1 (de) * 2018-08-07 2020-02-13 Kässbohrer Geländefahrzeug AG Pistenraupe mit einem Kettenlaufwerk
EP3699362A1 (fr) * 2019-02-21 2020-08-26 Geel Vermietungs- und Beteiligungs GmbH Système de couplage destiné au couplage interchangeable d'un appareil isolé avec une machine de travail
DE102019104852A1 (de) * 2019-02-26 2020-08-27 Aebi Schmidt Deutschland Gmbh Sondernutzfahrzeug

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LIEBHERR: "Liebherr - LIKUFIX fully automatic quick coupling system", YOUTUBE, XP093061778, Retrieved from the Internet <URL:https://www.youtube.com/watch?v=6XDyt6-pFO0> [retrieved on 20230706]

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