EP4212670A1 - Dameuse comprenant une cabine de conduite ainsi qu'une fraise arrière et fraise arrière pour une telle dameuse - Google Patents

Dameuse comprenant une cabine de conduite ainsi qu'une fraise arrière et fraise arrière pour une telle dameuse Download PDF

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Publication number
EP4212670A1
EP4212670A1 EP22214911.4A EP22214911A EP4212670A1 EP 4212670 A1 EP4212670 A1 EP 4212670A1 EP 22214911 A EP22214911 A EP 22214911A EP 4212670 A1 EP4212670 A1 EP 4212670A1
Authority
EP
European Patent Office
Prior art keywords
another
snow groomer
tiller
relative
driver
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.)
Pending
Application number
EP22214911.4A
Other languages
German (de)
English (en)
Inventor
Tobias Weiss
Thomas Heinzelmann
Sven HOLZAPFEL
Markus Wiedmann
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 EP4212670A1 publication Critical patent/EP4212670A1/fr
Pending legal-status Critical Current

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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 groomer with a driver's cab and with a rear tiller, which has a support frame which is detachably connected to a rear carrier of the snow groomer, and at least two tiller shafts which are each rotatably mounted in a tiller shaft housing, the tiller shaft housings being adjacent to one another transversely to the towing direction of the rear tiller and aligned at least largely in alignment with one another and are arranged so that they can be articulated to a limited extent relative to one another in their alignment, and with an adjusting device for adjusting and fixing the milling shaft housings relative to one another in different articulated alignments.
  • the invention also relates to a rear cutter for a snow groomer of this type, having a carrier frame which carries at least two cutter shaft housings, in which at least one cutter shaft is rotatably mounted, the two cutter shaft housings being adjacent to one another transversely to the towing direction of the rear cutter and being aligned at least largely in alignment with one another in their longitudinal extent and are arranged so that they can be bent relative to one another to a limited extent, and with an adjusting device for adjusting and fixing the milling shaft housing relative to one another in different buckling orientations.
  • Such a snow groomer with such a tail cutter is from WO 98/52658 A1 known.
  • the well-known rear cutter is arranged at the rear of a snow groomer, which tows the rear cutter over a snowy ground while driving.
  • the rear cutter has two cutter shaft housings, in each of which a cutter shaft is rotatably mounted.
  • the two tiller shaft housings each extend transversely to the towing direction of the rear tiller approximately over half of the longitudinal alignment of the rear tiller, which extends in the transverse direction.
  • the two auger shaft housings are coupled to one another with limited articulation in the middle via a joint arrangement in order to be able to achieve an exactly aligned alignment of the two auger shaft housings, a downwardly kinked, approximately V-shaped buckling alignment and an upwardly kinked, roof-shaped alignment.
  • a hydraulic cylinder which extends between the two auger shaft housings and is connected to both auger shaft housings, is assigned to the two auger shaft housings at a distance from the joint arrangement. By appropriate actuation of the hydraulic cylinder, the different buckling orientations of the milling shaft housing can be adjusted relative to one another, including an exactly aligned buckling orientation.
  • the object of the invention is to create a snow groomer and a rear tiller of the type mentioned at the outset, which allow simplified operation by a driver of the snow groomer.
  • This task is solved for the snow groomer in that a sensor system is provided to detect relative buckling alignments between the milling shaft housings, which is connected to an electronic control unit that evaluates the sensor signals from the sensor system and displays them in an output unit in the driver's cab.
  • a sensor system is provided to detect relative buckling alignments between the tiller shaft housings, which is connected to an electronic control unit that evaluates sensor signals from the sensor system and is connected to an interface an output unit is provided in a driver's cab in order to display the respective relative articulation orientations on the output unit when the rear tiller is in the mounted operating state on the snow groomer.
  • the snow groomer according to the invention as well as the rear tiller according to the invention considerably simplifies maintenance or shaping of snowy terrain for a person controlling the snow groomer. Because the person receives information about the buckling alignment of the adjacent auger shaft housings directly in the driver's cab, without having to get out of the car and find out about the buckling alignment of the auger shaft housing by inspecting the rear tiller.
  • the solution according to the invention is particularly advantageous for designing fun parks.
  • the invention is intended for two or more auger shaft housings that adjoin one another transversely to the towing direction, as well as for a corresponding number of two or more auger shafts mounted in the auger shaft housings.
  • auger shaft housings If there are more than two auger shaft housings, two immediately adjacent auger shaft housings can always be detected in their kink alignment. With three or more auger shaft housings, a chain of auger shaft housings results, with two adjacent auger shaft housings being coupled to one another, preferably in an articulated manner.
  • the auger shaft housings can either be connected to each other directly at the ends by means of a joint arrangement or indirectly via a correspondingly pivotable mounting of the auger shaft housing on the carrier frame. In a neutral buckling orientation, the milling shaft housings are aligned exactly in line with one another in their longitudinal extent. Articulation mobility is provided at least largely in a plane of movement that extends in the vertical direction and transverse to the towing direction of the rear tiller.
  • the output unit is preferably provided as a visual output unit for the person controlling the snow groomer.
  • the output unit is designed as an acoustic output unit, with information about the evaluated sensor signals being output visually or acoustically, depending on the design of the output unit.
  • the control unit is assigned a data memory in which the specified basic alignments of the tiller shaft housings relative to one another are stored, and an operating unit is provided in the driver's cab, which the driver can use to select one of the basic alignments, and the control unit controls the actuating device depending on the made selection of the operating unit.
  • the basic orientations stored in the data memory can include a neutral position (neutral articulation orientation), a roof position (milling shaft housing bent upwards in a roof shape) and a V-position (milling shaft housing bent downwards in a V-shape).
  • the operating unit has information for the person controlling the snow groomer, which enables the person to select one of the basic alignments and thus to control the control unit so that it activates the adjusting device and sets the correspondingly selected basic alignment for the milling shaft housing.
  • the output unit has an optical and/or acoustic display device that can be detected by a driver in the driver's cab.
  • the driver is a person who controls the snow groomer. It is possible to design the display device either optically or acoustically or to provide a combined optical and acoustic display device.
  • the milling shaft housings are movably coupled to one another at the end by means of a joint arrangement.
  • the joint arrangement preferably defines a joint axis aligned in the towing direction of the rear tiller.
  • the adjusting device has at least one linear adjusting drive, which is connected to both milling shaft housings at a radial distance from a joint axis of the joint arrangement.
  • the linear actuator can advantageously be designed as a hydraulically or pneumatically operated actuating cylinder or as an electric spindle drive.
  • the adjusting device is designed in such a way that it enables the articulation angle between the two auger shaft housings to be changed steplessly.
  • a displacement sensor system is assigned to the linear actuator.
  • the path sensor is preferably assigned to a piston of the hydraulic or pneumatic actuating cylinder or a spindle of the electric spindle drive.
  • an angle sensor system is assigned to the joint arrangement.
  • the angle sensors detect different angular orientations of the tiller shaft housing relative to one another, ie different articulation angles.
  • the adjusting device has a floating function and a locking function.
  • the floating function of the adjusting device is to be understood as meaning a non-blocked state in which the milling shaft housings can be moved relative to one another in their articulation angle.
  • the locking function means a blocking of the respective articulation angle alignment.
  • the floating function has the advantage that the rear tiller can be placed on snowy ground by the person controlling the snow groomer and the tiller shaft housing is automatically aligned with the contour of the surface of the snowy ground. This alignment can then be blocked by the locking function.
  • the snow groomer has a vehicle frame to which a chain drive is assigned. On opposite long sides of the vehicle frame, the chain drive has a drive chain that runs around a rear drive wheel, several running wheels and a front tension wheel.
  • the snow groomer is equipped with a clearing blade at the front.
  • a driver's cab is arranged on the front of the vehicle frame, in which a cockpit is provided for a person controlling the snow groomer. From the cockpit, the person can control driving functions of the snow groomer as well as control attachments at the front or rear.
  • the rear tiller 1 is based on the Figures 1 to 5 shown in more detail.
  • the rear tiller 1 is towed through the snow groomer on a rear implement carrier of the snow groomer in a ready-to-use state.
  • the snow groomer is positioned in front of the rear tiller 1 and stands on the in 1 up-curved snow bed SU.
  • the rear tiller 1 is detachably connected by means of a device carrier connection 2 to the rear device carrier, not shown, of the snow groomer.
  • the rear tiller 1 has a carrier frame 3, on which the device carrier connection 2 is also fixed.
  • the support frame 3 carries two milling shaft housings 4, which are open at the bottom and in each of which a milling shaft 5 is rotatably mounted.
  • the two milling shafts 5 can be driven by means of a milling shaft drive, not shown.
  • the rear tiller 1 is shown from the front, ie from the snow groomer.
  • a finisher arrangement which is provided behind the milling shafts and thus also behind the milling shaft housings 4, is based on FIG 1 and 2 not recognizable and also not shown.
  • each auger shaft housing 4 is box-shaped and is suspended from corresponding support arms of the support frame 3 .
  • the suspension has limited mobility in order to allow the compensating movements of the milling shaft housing described below.
  • the two milling shaft housings 4 are aligned transversely to the towing direction, ie in the longitudinal extension of the milling shafts 5, relative to one another, such as 1 can be easily removed. are in 1 Both milling shaft housings are aligned exactly coaxially to one another in a common alignment.
  • the two tiller shaft housings 4 each have ends on the ends, with two inner end ends of the two tiller shaft housings 4 being positioned at a small distance from one another in a central area of the rear tiller 1 .
  • the two front ends of the milling shaft housing 4 are connected to one another via a joint arrangement 6 which defines a joint axis extending in the towing direction, ie orthogonally to the plane of the drawing (see also 2 ).
  • the two milling shaft housings 4 are consequently connected to one another in an articulated manner via this joint arrangement 6 about the joint axis, such as 2 is easily removable.
  • the two milling shaft housings 4 are connected to one another in the region of their upper side via an adjusting device 7, in the present case in the form of a hydraulic adjusting cylinder.
  • a pivot point 8 firmly connected to the left auger shaft housing 4 is fixed on the one hand and one to the right auger shaft housing 4 connected pivot point 9 provided on the other hand.
  • One end of an actuating piston of the actuating cylinder acts on one pivot point 8 .
  • a front end of the cylinder of the actuating cylinder 7 acts on the other pivot point 9 .
  • the hydraulic actuating cylinder 7 is controlled by a control device St (see Figures 3 to 5 ) operable, wherein the control device St can hold the actuating cylinder, ie the actuating device 7, also in a floating position in which the actuating piston of the actuating cylinder is linearly movable relative to the cylinder, ie floating.
  • a buckling alignment of the two milling shaft housings 4 relative to one another ie pivoting about the joint axis of the joint arrangement 6, can be carried out steplessly in many different angular orientations.
  • a neutral position of the two milling shaft housings 5 is shown, in which the two milling shaft housings 4 are exactly coaxially aligned with one another.
  • roof positions are shown in which the two milling shaft housings 4 are pivoted upwards so that they are aligned in the manner of a flat roof.
  • a V-position is shown, in which the two milling shaft housings 4 are pivoted slightly downwards from the neutral position about the joint axis of the joint arrangement 6, so that when viewed in the towing direction, an angular orientation in the manner of a slight V results.
  • the adjusting device 7 serves not only to adjust the buckling alignment of the tiller shaft housing relative to one another, but also to fix the buckling alignment set in each case.
  • a sensor system which, in the illustration according to FIGS Figures 3 to 5 is formed by a displacement sensor S 1 on the one hand and an angle sensor S 2 on the other.
  • a displacement sensor S 1 on the one hand
  • an angle sensor S 2 on the other.
  • only the displacement sensor system S 1 or the angle sensor system S 2 can be provided.
  • the sensors are connected to the control unit St, which represents an electronic data processing unit.
  • the displacement sensor system is assigned to the actuating cylinder of the actuating device 7 in order to detect the extension or retraction paths of the actuating piston relative to the cylinder.
  • the angle sensor system S 2 is assigned to the joint arrangement 6 .
  • the control unit St detects corresponding sensor signals from the sensors S 1 , S 2 , processes them and is coupled via an interface 10 to an output unit A, which is assigned to the cockpit of the person controlling the snow groomer in the driver's cab.
  • the output unit A gives the die Snow groomer controlling person information about the relative buckling orientation of the milling shaft housing 4 relative to each other.
  • This information can be visualized in the output unit A by means of schematic representations of the neutral position, the roof-shaped buckling alignment or the V-shaped buckling alignment of the tiller shafts analogous to the representations according to FIG Figures 3, 4 and 5 .
  • the output unit can also only output written information about the angular orientation relative to the neutral zero position.
  • a control unit B is also provided in the cockpit, which can be activated and operated by the person controlling the snow groomer.
  • the operating unit B is connected to the control unit St.
  • Data on the neutral position of the tiller shaft housing 4 relative to one another, at least one predetermined V-position and at least one predetermined roof position of the tiller shaft housing 4 relative to one another are predetermined in the control unit St. Using the operating unit B, one of these positions can be controlled by the person controlling the snow groomer, as a result of which the adjusting device 7 aligns the milling shaft housing 4 in the desired relative position.
  • the rear cutter 1 is shown in its transport position on the snow groomer, in which the rear cutter 1 is lifted upwards from a snowy ground SU.
  • the adjusting device 7 is in its floating position, in which the two milling shaft housings 4 can be pivoted relative to one another, then the buckling alignment of the milling shaft housings 4 relative to one another necessarily adapts to the curvature of the surface of the snowy ground SU.
  • the adjusting device 7 can now block the milling shaft housing 4 relative to one another, so that this buckling orientation in the form of a roof position is retained during subsequent towing operation of the rear milling cutter 1 .
  • uniform runway surfaces can be achieved for the snow subsoil SU when the snow groomer is working on it.
  • the snow groomer according to the invention is particularly suitable for creating fun parks with corresponding hilly or trough surfaces of the snowy ground SU.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Agricultural Machines (AREA)
EP22214911.4A 2022-01-18 2022-12-20 Dameuse comprenant une cabine de conduite ainsi qu'une fraise arrière et fraise arrière pour une telle dameuse Pending EP4212670A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022200466.3A DE102022200466B4 (de) 2022-01-18 2022-01-18 Pistenraupe mit einem Fahrerhaus sowie mit einer Heckfräse und Heckfräse für eine Pistenraupe mit einem Fahrerhaus

Publications (1)

Publication Number Publication Date
EP4212670A1 true EP4212670A1 (fr) 2023-07-19

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ID=84541442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22214911.4A Pending EP4212670A1 (fr) 2022-01-18 2022-12-20 Dameuse comprenant une cabine de conduite ainsi qu'une fraise arrière et fraise arrière pour une telle dameuse

Country Status (2)

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EP (1) EP4212670A1 (fr)
DE (1) DE102022200466B4 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052658A1 (fr) 1995-08-08 1998-11-26 Lmc Operating Corp. Appareil de labourage dote d'un dispositif de coupe en profondeur et d'un angle d'entree de peigne de damage de neige reglables
WO2015075670A1 (fr) * 2013-11-20 2015-05-28 Snowgrolic S.A R.L. Fraise à neige pour la préparation de pistes de ski
WO2020165799A1 (fr) * 2019-02-12 2020-08-20 Prinoth S.P.A. Fraise à neige pour la préparation de pistes de ski

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20072096A1 (it) 2007-10-30 2009-04-30 Rolic Invest Sarl Dispositivo di collegamento fra un veicolo battipista ed un'attrezzatura per la preparazione del manto nevoso delle piste da sci e metodo di controllo impiegante tale dispositivo di collegamento
DE102014200899A1 (de) 2013-12-20 2015-06-25 Kässbohrer Geländefahrzeug AG Pistenraupe und Räumschild für eine derartige Pistenraupe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998052658A1 (fr) 1995-08-08 1998-11-26 Lmc Operating Corp. Appareil de labourage dote d'un dispositif de coupe en profondeur et d'un angle d'entree de peigne de damage de neige reglables
WO2015075670A1 (fr) * 2013-11-20 2015-05-28 Snowgrolic S.A R.L. Fraise à neige pour la préparation de pistes de ski
WO2020165799A1 (fr) * 2019-02-12 2020-08-20 Prinoth S.P.A. Fraise à neige pour la préparation de pistes de ski

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DE102022200466A1 (de) 2023-07-20
DE102022200466B4 (de) 2024-08-01

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