EP4029994B1 - Véhicule d'entretien des pistes - Google Patents

Véhicule d'entretien des pistes Download PDF

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Publication number
EP4029994B1
EP4029994B1 EP22151046.4A EP22151046A EP4029994B1 EP 4029994 B1 EP4029994 B1 EP 4029994B1 EP 22151046 A EP22151046 A EP 22151046A EP 4029994 B1 EP4029994 B1 EP 4029994B1
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EP
European Patent Office
Prior art keywords
connecting device
hydraulic
coupling
quick
another
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.)
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Application number
EP22151046.4A
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German (de)
English (en)
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EP4029994A1 (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
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Application filed by Kassbohrer Gelandefahrzeug AG, Kaessbohrer Gelaendefahrzeug AG filed Critical Kassbohrer Gelandefahrzeug AG
Publication of EP4029994A1 publication Critical patent/EP4029994A1/fr
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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 snow grooming vehicle with the features of the preamble of claim 1.
  • Such a snow grooming vehicle is, for example, from the DE 10 2018 213 239 A1 known and intended for the maintenance and/or processing of snow-covered ski or snowboard slopes.
  • the well-known piste grooming vehicle has a longitudinal support frame on which a crawler chassis and an adjusting device are mounted.
  • the adjusting device is designed in the form of a rear equipment carrier arranged on the rear of 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 adjusting movement of the adjusting device.
  • the attachment can be exchanged depending on the purpose of the snow grooming vehicle.
  • the coupling and uncoupling to or from the adjusting device required to replace the attachment must be carried out manually by an operator in the known snow grooming vehicle. If the attachment is electrically and/or hydraulically driven, corresponding electrical and/or hydraulic couplings must also be connected and disconnected manually.
  • the clutch system has a main clutch part and a secondary clutch part.
  • the main clutch part has a locking slide and a hydraulic clutch unit.
  • the hydraulic clutch unit can be moved back and forth between a decoupling position and a coupling position with a main directional component parallel to a longitudinal direction.
  • the hydraulic clutch unit is arranged behind the locking slide when viewed in a normal direction.
  • the well-known quick coupler has, among other things, contactless, inductive transmission devices that interact inductively for the purpose of transmitting electrical energy.
  • the special utility vehicle comprises a carrier vehicle, an attachment and a quick-change device for interchangeably attaching the attachment to the front of the carrier vehicle, with a vehicle plate that is fixedly arranged on the carrier vehicle and a device plate that can be connected to it and is arranged on the attachment.
  • the vehicle plate essentially consists of a vehicle plate base that is immovably attached to the carrier vehicle and a support tube unit that is movably articulated relative to it and has a support tube that extends horizontally in front of the front of the carrier vehicle. This can be moved into a lowered and a raised position with the help of at least one support tube actuator unit.
  • the object of the invention is to provide a piste grooming vehicle of the type mentioned at the outset, which can be used as injury-proof, cost-effectively and flexibly as possible.
  • the solution according to the invention means that manual coupling and uncoupling of the attachment, which is often time-consuming and prone to injury, can be dispensed with. This can save working hours and the associated personnel costs. There is also a manual pairing Naturally associated risk of injury is avoided.
  • the solution according to the invention allows a particularly flexible use of the snow grooming vehicle. Because of the working time savings achieved, attachments intended for different purposes can be coupled and uncoupled in a shorter time. Due to the manual effort involved, conventional snow grooming vehicles often do not need to be uncoupled according to the situation and the attachment is carried along unnecessarily. This is accompanied by comparatively increased fuel consumption and unnecessary environmental pollution.
  • the quick coupling system can be transferred between the coupling state and the disconnected state without tools.
  • “tool-free” means without direct manual intervention by an operator.
  • the quick coupling system can be transferred between the coupling and the disconnected state by means of an adjusting movement of the adjusting device.
  • the first coupling device is mounted on the adjusting device.
  • the second coupling device is mounted on the attachment.
  • the first coupling device is - in the disconnected state - movable relative to the second coupling device by means of an adjusting movement of the adjusting device.
  • the second coupling device is preferably mounted on the attachment so that it cannot move relative to it.
  • the first coupling device and the second coupling device are releasably coupled to one another in a form-fitting and/or force-fitting manner. Consequently, the attachment is indirectly supported on the adjusting device in a load-bearing manner, namely by means of the quick coupling system.
  • 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 device carrier.
  • the actuating device preferably has a kinematics system formed from several actuating cylinders.
  • the actuating cylinders are preferably hydraulic cylinders.
  • the adjusting device is preferably designed in such a way that the attachment is movable in translation 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 is rotatably pivotable, tiltable and/or tiltable 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 be driven electrically and/or hydraulically.
  • the energy supply device provides the operating energy required to operate the snow grooming vehicle, in particular the crawler chassis and/or the attachment.
  • the operating energy can be provided mechanically, electrically and/or hydraulically.
  • the direction and orientation information used in this description refers to an imaginary state in which the snow grooming vehicle is parked on a horizontal, slope-free snow slope.
  • 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 coupled to one another in a form-fitting manner without tools and can be separated from one another without tools.
  • This design is structurally simple, especially in comparison to a design that can be coupled in a force-locking manner.
  • the two coupling devices preferably have complementary bearing sections which can be contacted against one another by means of an adjusting movement of the adjusting device to form the positive 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 converted from the disconnected state into a receiving state in which the second bearing section is positively supported on the first bearing section against gravity is and together with the first bearing section forms a pivot bearing arrangement which is pivotable about a pivot axis.
  • the two bearing sections are preferably designed to be complementary to one another and allow a positive transmission of force along at least one direction of movement of the adjusting movement that can be carried out by means of the adjusting 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 engages under the second bearing section, so that the latter is supported on the first bearing section against gravity, i.e. in the vertical direction from top to bottom.
  • the attachment is raised with the adjusting device starting from the disconnected state, with the power 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 receiving state - simultaneously ensure pivoting mobility around the pivot axis, further lifting against gravity causes the attachment to pivot relatively in the direction of the adjusting device.
  • the pivot axis is preferably oriented parallel to the transverse direction.
  • the actuating movement for receiving the attachment is preferably oriented perpendicular to the transverse direction.
  • the first bearing section has at least one hook element
  • the second bearing section has at least one rod element extending longitudinally in the transverse direction, or vice versa.
  • This design is structurally particularly simple and robust. Preferably two are spaced apart from one another in the transverse direction arranged hook elements are provided. To pick up the attachment, the at least one hook element is positioned below the at least one rod element and then moved upwards. This is again done by appropriately controlling the adjusting device.
  • the at least one rod element has a circular cylindrical cross section and, in the receiving state, is supported on the at least one hook element so that it can slide about the pivot axis.
  • 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 accurate positioning of the adjusting device and thus of 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, being contactable 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 coupling 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 coupling state - are opposite to one another and are each oriented perpendicular to the pivot axis. This in particular achieves a further improved power transmission between the two coupling devices.
  • the first flange section and the second flange section are arranged below the respective bearing section on the respective coupling device. Such an arrangement exists at least in the coupling state.
  • the indication “below” refers to the vertical direction and/or the effective direction of gravity.
  • the first flange section is arranged below the first bearing section.
  • the second flange section is arranged below the second bearing section.
  • the quick coupling system has a locking device for positively locking the coupling state.
  • the locking device is preferably arranged partly on the first coupling device and partly on the second coupling device.
  • the locking device counteracts unwanted disconnection of the coupling state.
  • the locking prevents, in particular, 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 opposing locking openings and the first coupling device has at least two opposing locking elements, the locking elements being movable by means of an adjusting element floatingly mounted between the locking elements to cooperate with the locking openings.
  • the locking elements are preferably each designed as a bolt element, with the locking openings each being designed as a bolt receptacle in a complementary manner.
  • the floating actuating element 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.
  • 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 be connected and detached by means of a transfer of the quick coupling system between the coupling and the disconnected states.
  • the hydraulic quick coupling is set up to transmit a hydraulic pressure between 250 bar and 450 bar and a hydraulic volume flow between 160 l / m and 200 l / m.
  • the hydraulic quick coupling allows hydraulic energy to be transmitted at relatively high pressures and at the same time relatively high volume flows.
  • attachments for grooming and/or piste processing such as snow blowers
  • comparatively high hydraulic pressures and volume flows are required compared to, for example, attachments from agriculture and/or forestry.
  • the quick coupling is set up accordingly, in contrast to solutions known from the prior art.
  • 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 without tools by means of a transfer of the quick coupling system between the coupling and the disconnected state.
  • the first hydraulic clutch unit and the second hydraulic clutch unit form the hydraulic quick coupling.
  • the two coupling units each have corresponding coupling elements which are designed to be complementary between the two coupling units.
  • first hydraulic clutch unit and the second hydraulic clutch 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. Therefore, no separate actuating movement and/or actuator system is 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 coupling. A mechanical decoupling is accompanied by a simultaneous release of the hydraulic connection. This results in a simplified structure. This allows further cost reduction.
  • the first hydraulic clutch unit is aligned perpendicular to the first flange section and the second hydraulic clutch unit is aligned perpendicular to the second flange section.
  • a connection direction of the hydraulic quick coupling is oriented perpendicular to the pivot axis and perpendicular to the flange sections.
  • the quick coupling system has an electrical quick coupling for tool-free electrical connection of the attachment to the Energy supply device. This eliminates the need for time-consuming and potentially injury-prone manual creation of the electrical connection to the attachment.
  • the electrical quick coupling can be connected and separated by means of a transfer of the quick coupling system between the coupling and the disconnected states.
  • 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 separation state the two energy transfer units are spatially separated from one another in such a way that no induction-based energy transfer can take place. This configuration enables a particularly robust energy transfer that is insensitive to environmental influences.
  • the attachment is a rear tiller with a support structure and a milling shaft rotatably mounted on the support structure, the second coupling device being mounted on the support 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 screwed and/or welded frame construction.
  • the second coupling device is preferably immovably mounted on the support structure by means of several screw connections. Further preferably, the second coupling device projects 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.
  • the limited elastically flexible and vibration-damped connection enables, in particular, a qualitatively improved care and/or processing result.
  • the vibration bearing arrangement in particular reduces unwanted vibration transmission to the rear tiller.
  • a piste maintenance vehicle 1 for maintaining a schematically indicated snow piste P.
  • the snow grooming vehicle 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 basically known as such, with a support frame 2 which extends longitudinally in the longitudinal direction
  • an attachment 5 is coupled to the adjusting device 4 and can be moved 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, in the embodiment shown, is designed as a rear tiller 6.
  • the snow groomer 1 has an energy supply device 7, which is set up to supply the crawler chassis 3 and the rear tiller 6 with operating energy and, in the embodiment shown, includes a diesel unit 8 hidden under an unspecified cover.
  • the energy supply device 7 includes a hydraulic system 9 (not shown in more detail) and an electrical system 10.
  • the crawler chassis 3, the adjusting device 4 and the rear tiller 6 are at least connected to the hydraulic system 9 in a manner known to those skilled in the art.
  • a hydrostatic drive of the crawler chassis 3, a hydraulic actuation mobility of the adjusting device 4 and a hydraulic drive of the rear tiller 6 are provided here.
  • 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 on the front of the support frame 2 and a further attachment 5'.
  • the additional attachment 5' is designed as a clearing blade and can be moved into different functional positions relative to the support frame 2 in a generally known manner by means of an adjusting movement of the front adjusting device 4'.
  • the snow groomer 1 has a driver's cabin 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 crawler chassis 3.
  • the attachments 5, 5' can be exchanged for other attachments and can be disconnected from and coupled to the respective adjusting device 4, 4'.
  • the attachment and uncoupling of the attachments is usually done manually and using tools.
  • screw and/or bolt connections between the adjusting device and the respective attachment must be loosened manually.
  • coupling Manual coupling and uncoupling can be time-consuming and risky of injury.
  • the snow groomer 1 in the embodiment shown has a quick coupling system S, in particular in the area of the rear adjusting device 4 and the rear attachment 5, which is particularly based on the Fig. 2 and 5 can be seen in detail.
  • the quick coupling system S is only indicated schematically.
  • the quick coupling system S allows tool-free coupling and uncoupling of the attachment 5 to the actuating device 4.
  • uncoupling the attachment 5 in contrast to the prior art, it is possible to manually release a mechanical, hydraulic and / or electrical connection between the actuating device and the attachment be waived. The same applies mutatis mutandis to coupling the attachment 5.
  • the quick coupling system S has a first coupling device 12 ( Fig. 3 ) and a second coupling device 13 ( Fig. 4 ) on.
  • the first coupling device 12 is mounted on the adjusting device 4 in a manner described in more detail.
  • the second coupling device 13 is mounted on the attachment 5 in a manner described in more detail.
  • 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 coupling unit 17, a first electrical energy transmission unit 18 ( Fig. 6 ) and a bolt holder 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 cooperate with a complementary bearing section of the second coupling device 13 in a manner described in more detail.
  • the first bearing section 15 has two hook elements 20 arranged at a distance from one another in the transverse direction Y. These protrude - in relation to the drawing plane Fig. 3 - In the vertical direction from an upper side of the base body 14.
  • 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 at a distance from one another in the transverse direction Y.
  • a further bolt receptacle 22 is formed on the base body 14 ( Fig. 6 ).
  • 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 pivotally displaceable about a pivot axis S1.
  • the pivot axis S1 extends parallel to the transverse direction Y.
  • a hydraulic actuating cylinder 23 engages to move the first coupling device 12 about the pivot axis S1 Adjusting device 4 via a bolt 24 on the bolt holder 19.
  • Another hydraulic cylinder which cannot be seen in more detail, can engage the first coupling device 12 in the area of the further bolt receptacle 22.
  • the first flange section 16 is - in relation to the drawing plane Fig. 3 - Formed above the bolt receptacle 19 and below the first bearing section 15 on the base body 14.
  • the first flange section 16 interacts with a complementary flange section of the second coupling device 13 in a manner described in more detail.
  • the second coupling device 13 has a base body 24. In this case, this is made 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 ( Fig. 7 ).
  • the second bearing section 25 is on one - in relation to the drawing plane Fig. 4 - Arranged at the upper front end area of the base 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 coupling unit 27 in the area of a lower front end of the base body 24.
  • the second coupling device 13 is arranged in the ready-to-operate state on an upper side of the rear tiller 6 and assembled with a support structure 30 of the rear tiller 6.
  • the support structure 30 is designed here as a tubular frame construction.
  • a rigid attachment of the second coupling device 13 to the support structure 30 is possible using appropriate fastening means.
  • a vibration-damped attachment of the second coupling device 13 is provided.
  • a vibration bearing arrangement 31, 32 is arranged between the support structure 30 and the base body 24.
  • the vibration bearing arrangement has two spring-damper units 31, each of which is supported at one end on the support structure 30 and at the other end on the base body 24 and is screwed accordingly. Based Fig. 7 only one of the two spring-damper units 31 can be seen.
  • the vibration bearing arrangement 31, 32 has two elastomer elements 32, each of which is attached at one end to the support structure 30 and at the other end to the base body 24 are supported and screwed accordingly. Based Fig. 7 again only one of the two elastomer elements 32 can be seen.
  • the second coupling device 13 has two support arms 33 which project laterally outwards in the transverse direction Y and downwards in the vertical direction Z, each of which is welded to the base body 24.
  • the second hydraulic clutch unit 27 is arranged in the vertical direction Z below the second bearing section 25 and above the second flange section 26.
  • 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 (not shown in more detail) are provided and connected at the rear to corresponding line receptacles of the first hydraulic coupling 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, which is not shown in more detail.
  • the hydraulic line system of the rear tiller 6 feeds in particular a hydrostatic drive of a milling 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 fluid-conducting connection of the two hydraulic coupling units 17, 27 to corresponding hose or pipe lines 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 In a decoupled state (not shown in the drawing), the rear tiller 6, together with the second coupling device 13 mounted on it, is parked on the snow piste P away from the rest of the piste grooming vehicle.
  • the rear tiller 6 is mechanically, hydraulically and/or electrically separated from the rest of the structure of the snow grooming vehicle, in particular the first coupling device 12. In this respect, one can also speak of a separation state.
  • the first coupling device 12 is displaced 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 under certain circumstances result in a travel movement of the Tracked chassis can be used for rough positioning.
  • the adjusting device 4 is initially controlled in such a way that the two hook elements 20 are arranged below the rod element 29 in the vertical direction Z and aligned with it in the transverse direction Y.
  • 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 pivoting adjustment movement about the pivot axis S1.
  • Fig. 5 As can be seen, the hook elements 20 engage 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 via the rod element 29 against the force of gravity.
  • 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.
  • 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 the first pivot axis S1 and second pivot axis S2.
  • the quick coupling system S has a locking device 36, which is particularly based on the 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 ones in the transverse direction Y Locking elements 38, which in the embodiment shown are arranged on the first coupling device 12 so that they can move relative to the base body 14 by means of an adjusting element 39.
  • the adjusting element 39 is mounted floating between the two locking elements 38 and engages 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.
  • Fig. 9 As can be seen, the locking elements 38 are displaced outwards through the respective locking opening 37, opposite one another in the transverse direction Y.
  • the positive connection achieved in this way counteracts unwanted relative pivoting of the two coupling devices 12, 13 about the second pivot axis S2.
  • Fig. 8 In the apparent state, the said positive connection is canceled.
  • the adjusting element 39 like the adjusting elements of the adjusting 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 thereby be controlled from the driver's cab 11 without the operator having to intervene manually directly in the area of the adjusting 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 generally known manner for the contactless, induction-based transmission of electrical energy.
  • the basic functionality and design of the electrical quick coupling 18, 28 is known as such, so that further explanations in this regard can be dispensed with.
  • the rear tiller 6 is uncoupled without tools in a kinematically reversed manner.

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Claims (15)

  1. Véhicule d'entretien des pistes (1) avec
    - un cadre porteur étendu longitudinalement (2),
    - un châssis à chenilles (3) monté sur le cadre porteur (2),
    - un dispositif de manoeuvre (4) monté sur le cadre porteur (2) à l'avant ou à l'arrière,
    - un équipement auxiliaire (5) attelé au dispositif de manoeuvre (4), qui est conçu pour l'entretien et/ou le traitement d'une piste de ski (P) et qui est déplaçable par rapport au cadre porteur (2) au moyen d'un mouvement de réglage du dispositif de manoeuvre (4),
    - et avec un équipement d'alimentation en énergie (7) qui est configuré pour alimenter en énergie de fonctionnement le châssis à chenilles (3) et/ou l'équipement auxiliaire (5),
    - caractérisé en ce qu'un système d'attelage rapide (S) est prévu avec un premier dispositif d'attelage (12) monté sur le dispositif de manoeuvre (4) et un second dispositif d'attelage (13) monté sur l'équipement auxiliaire (5), sachant que le premier dispositif d'attelage (12) et le second dispositif d'attelage (13) pouvant pivoter l'un par rapport à l'autre autour d'un axe de pivotement (S2), et sachant que le système d'attelage rapide (S) peut être permuté sans outil entre un état attelé dans lequel le premier dispositif d'attelage (12) et le second dispositif d'attelage (13) sont accouplés mécaniquement ensemble, et un état séparé dans lequel l'accouplement est supprimé,
    - que le système d'attelage rapide (S) présente un attelage rapide hydraulique avec une première unité d'attelage hydraulique (17) et une seconde unité d'attelage hydraulique (27) pour la liaison hydraulique sans outil de l'équipement auxiliaire (5) avec l'équipement d'alimentation en énergie (7),
    - que le premier dispositif d'attelage (12) présente la première unité d'attelage hydraulique (17), que le second dispositif d'attelage (13) présente la seconde unité d'attelage hydraulique (27) et que les deux unités d'attelage hydrauliques (17, 27) sont connectables entre elles sans outil, de manière à être conductrices de fluide et séparables l'une de l'autre au moyen d'une permutation du système d'attelage rapide (S) de l'état attelé à l'état séparé,
    - et que la première unité d'attelage hydraulique (17) et la seconde unité d'attelage hydraulique (27) sont connectables entre elles et séparables l'une de l'autre rien qu'au moyen du mouvement de pivotement relatif des deux dispositifs d'attelage (12, 13) autour de l'axe de pivotement (S2).
  2. Véhicule d'entretien des pistes (1) selon la revendication 1, caractérisé en ce que le premier dispositif d'attelage (12) et le second dispositif d'attelage (13) sont conçus de manière à être compatibles entre eux de sorte à être accouplables sans outil par complémentarité de forme et séparables l'un de l'autre sans outil.
  3. Véhicule d'entretien des pistes (1) selon la revendication 1 ou 2, caractérisé en ce que le premier dispositif d'attelage (12) présente une première section de palier (15), que le second dispositif d'attelage (13) présente une seconde section de palier (25), et que le système d'attelage rapide (S) peut être permuté de l'état séparé à un état logé dans lequel la seconde section de palier (25) est appuyée sur la première section de palier (15) par complémentarité de forme à l'encontre de la gravité et forme, avec la première section de palier (15) un agencement à palier orientable (15, 25) pivotant autour de l'axe de pivotement (S2).
  4. Véhicule d'entretien des pistes (1) selon la revendication 3, caractérisé en ce que la première section de palier (15) présente au moins un élément à crochet (20), et que la seconde section de palier (25) présente au moins un élément à tige (29) allongé dans le sens transversal (Y), ou inversement.
  5. Véhicule d'entretien des pistes (1) selon la revendication 3 ou 4, caractérisé en ce que la première section de palier (15) et la seconde section de palier (25) sont disposées à une extrémité supérieure frontale dans le sens vertical (Z) du dispositif d'attelage (12, 13) respectif.
  6. Véhicule d'entretien des pistes (1) selon l'une des revendications 3 à 5, caractérisé en ce que le premier dispositif d'attelage (12) présente une première section de bride (16), que le second dispositif d'attelage (13) présente une seconde section de bride (26), sachant que les deux sections de bride (16, 26) sont espacées l'une de l'autre à l'état logé et sont contactables entre elles au moyen d'un mouvement de pivotement des deux dispositifs d'attelage (12, 13) autour de l'axe de pivotement (S2), en partant de l'état logé.
  7. Véhicule d'entretien des pistes (1) selon la revendication 6, caractérisé en ce que la première section de bride (16) et la seconde section de bride (26) sont orientées respectivement perpendiculairement à l'axe de pivotement (S2) et/ou que la première section de bride (16) et la seconde section de bride (26) sont disposées respectivement en-dessous de la section de palier respective (15, 25) sur le dispositif d'attelage (12, 13) respectif.
  8. Véhicule d'entretien des pistes (1) selon l'une des revendications précédentes, caractérisé en ce que le système d'attelage rapide (S) présente un dispositif de verrouillage (36) servant au verrouillage par complémentarité de forme de l'état accouplé.
  9. Véhicule d'entretien des pistes (1) selon la revendication 8, caractérisé en ce que le second dispositif d'attelage (13) présente au moins deux ouvertures de verrouillage (37) opposées, et que le premier dispositif d'attelage (12) présente au moins deux éléments de verrouillage (38) opposés, sachant que les éléments de verrouillage (38) sont mobiles pour le réglage, au moyen d'un élément de réglage (39) monté de manière flottante entre les éléments de verrouillage (38) pour interagir avec les ouvertures de verrouillage (37).
  10. Véhicule d'entretien des pistes (1) selon l'une des revendications précédentes, caractérisé en ce que l'attelage rapide hydraulique (17, 27) est configuré pour transmettre une pression hydraulique entre 250 bar et 450 bar et un débit volumétrique hydraulique entre 160 I/m et 200 I/m.
  11. Véhicule d'entretien des pistes (1) selon l'une des revendications précédentes, caractérisé en ce que la première unité d'attelage hydraulique (17) est orientée perpendiculairement à la première section de bride (16) et que la seconde unité d'attelage hydraulique (27) est orientée perpendiculairement à la seconde section de bride (26).
  12. Véhicule d'entretien des pistes (1) selon l'une des revendications précédentes, caractérisé en ce que le système d'attelage rapide (S) présente un attelage électrique rapide (18, 28) pour la liaison électrique sans outil de l'équipement auxiliaire (5) avec l'équipement d'alimentation en énergie (7).
  13. Véhicule d'entretien des pistes (1) selon la revendication 12, caractérisé en ce que le premier dispositif d'attelage (12) présente une première unité électrique de transfert d'énergie (18), que le second dispositif d'attelage (13) présente une seconde unité électrique de transfert d'énergie (28) et que les deux unités électriques de transfert d'énergie (18, 28) sont configurées pour le transfert d'énergie sans contact, par induction.
  14. Véhicule d'entretien des pistes (1) selon l'une des revendications précédentes, caractérisé en ce que l'équipement auxiliaire (5) est une fraiseuse arrière (6) avec une structure porteuse (30) et un tambour de fraisage (35) monté sur la structure porteuse (30) de manière rotative, sachant que le second dispositif d'attelage (13) est monté sur la structure porteuse (30).
  15. Véhicule d'entretien des pistes (1) selon la revendication 14, caractérisé en ce que le second dispositif d'attelage (13) est monté sur la structure porteuse (30) avec une souplesse élastique limitée et de manière amortissant les vibrations, au moyen d'un agencement à palier contre les vibrations (31, 32).
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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EP4029994B1 true EP4029994B1 (fr) 2023-10-25

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Publication number Priority date Publication date Assignee Title
EP1329559A3 (fr) 2002-01-08 2003-10-29 Thomas Sauer Dispositif d'attache rapide pour engins de travail
DE102009019865A1 (de) * 2009-05-06 2010-11-18 Rheinmetall Landsysteme Gmbh Rad- oder Kettenfahrzeug mit einer an dem Fahrzeug angeordneten Räum- und/oder Stützanlage
DE102015216060A1 (de) 2015-08-21 2017-02-23 Mts Maschinentechnik Schrode Ag Verbindungsanordnung
DE102018213239A1 (de) 2018-08-07 2020-02-13 Kässbohrer Geländefahrzeug AG Pistenraupe mit einem Kettenlaufwerk
EP3699362B1 (fr) 2019-02-21 2022-10-05 Geel Vermietungs- und Beteiligungs GmbH Système de couplage destiné au couplage interchangeable d'un appareil isolé avec une machine de travail
DE102019104852B4 (de) 2019-02-26 2022-04-21 Aebi Schmidt Deutschland Gmbh Sondernutzfahrzeug

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