EP1925746B1 - Dispositif d'entretien de pistes pour un véhicule à chenilles - Google Patents

Dispositif d'entretien de pistes pour un véhicule à chenilles Download PDF

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Publication number
EP1925746B1
EP1925746B1 EP07021095.0A EP07021095A EP1925746B1 EP 1925746 B1 EP1925746 B1 EP 1925746B1 EP 07021095 A EP07021095 A EP 07021095A EP 1925746 B1 EP1925746 B1 EP 1925746B1
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EP
European Patent Office
Prior art keywords
support
finisher
preparation device
cutter
cross member
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.)
Active
Application number
EP07021095.0A
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German (de)
English (en)
Other versions
EP1925746A3 (fr
EP1925746A2 (fr
Inventor
Scott A. Westmont
Franz Beer
Gerd Friedmann
Hans-Martin Nusser
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
Original Assignee
Kassbohrer Gelandefahrzeug AG
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Publication date
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Publication of EP1925746A2 publication Critical patent/EP1925746A2/fr
Publication of EP1925746A3 publication Critical patent/EP1925746A3/fr
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Publication of EP1925746B1 publication Critical patent/EP1925746B1/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 piste grooming device for a tracked vehicle according to the preamble of patent claim 1.
  • a track maintenance device for a tracked vehicle according to the preamble of claim 1 is known from WO 01/44582 A1 known.
  • the well-known piste grooming device represents a tail mill for a snowcat, which has a plurality of juxtaposed milling units. Each milling unit in each case forms a milling housing for one milling shaft each.
  • a finisher in the form of a finisher is stored separately via a finisher pivoting mechanism.
  • the well-known grooming device is intended for rear attachment to a tracked vehicle for snow grooming.
  • the slope maintenance device has a two-part Fräswellenan Ich, which is housed in a likewise two-part impact housing.
  • the impact housing is pivotally mounted about a transversely extending to the direction of travel pivot axis on a milling carrier to allow lifting and lowering of the Fräswellenan Ich.
  • the pivot axis for the impact housing and the Fräswellenan inch is - seen in the normal direction of travel of the tracked vehicle - in front of the Fräswellenaniser so that the Fräswellenan extract and the impact housing by the milling cutter and thus by the tracked vehicle to which the milling carrier is coupled, is towed.
  • On the milling carrier is also - seen in the normal direction of travel of the tracked vehicle - behind the Fräswellenan emblem a smoothing provided, which is changeable by at least one actuating cylinder in its support behavior on the snow surface.
  • the object of the invention is to provide a piste grooming device of the type mentioned, which allows a further improved quality of the machined runway surface.
  • the adjustability of the smoothing ensures a sufficient and consistent contact pressure behind the Fräswellenan Aunt and so that on the already processed and crushed snow.
  • the pushed cutter shaft arrangement thus causes an improved crushing of the snow and ice surface, the support and adjusting means acting on the rear side subsequent smoothing effect a high-quality smoothing of the processed snow and ice.
  • the smoothing device has a smoothing board, which is also referred to as a finisher and can be made in one or more parts.
  • the finisher is designed to be continuous across the entire processing width to achieve a uniformly machined snow surface over the entire working width. Seen in the direction of travel, the finisher can be designed from at least two parts arranged one behind the other.
  • the piste grooming device may be provided with side finishers, which are arranged on both sides of the impact housing and achieve a smoothing of the lateral Aufschr selected during the driving operation of the tracked vehicle.
  • the cutter shaft arrangement can be a single, continuous cutter shaft or can also comprise a plurality of cutter shafts, preferably arranged side by side in alignment. In the latter case, it is a multi-split Fräswellenan extract, in the former case to a one-piece Fräswellenan ever.
  • the at least partially flexible smoothing structure is also referred to as a finisher.
  • the carrier unit can be designed in one or more parts.
  • the carrier unit comprises a plurality of support arms, which are distributed over the width of the smoothing device and mounted on the cross member of the milling carrier.
  • adjusting means mechanical adjusting screws are preferably provided, which are arranged on the at least one support arm so that they can exert pressure from above on a portion of the smoothing device down, which can in particular change the curvature of the smoothing, the contact surface and the contact pressure , But there are also hydraulically or pneumatically acting actuating means intended.
  • the support arms are preferably held on the finisher so that both tensile and compressive loads can be exerted on the finisher.
  • the milling carrier comprises at least approximately in the vehicle longitudinal direction extending longitudinal members which engage over the impact housing and the ends are connected to each other by a cross member.
  • the cross member defines the pivot axis for the Fräswellenan ever and the impact housing.
  • the cross member is designed as a rotationally symmetrical hollow profile in which a support shaft is rotatably mounted, with which the impact housing and mounted in the baffle housing Fräswellenan ever are rotatably connected.
  • the milling carrier is assigned at least one vibration damper, which is arranged between a central coupling region, by means of which the piste maintenance device can be connected to the motor vehicle, and the milling carrier.
  • the at least one vibration damper contributes to preventing the rear attachment, in particular the rear tiller, from swinging up while the tracked vehicle is being driven. The quality of the processing of the snow track surface can be further improved thereby.
  • vibration damper In a further embodiment of the invention, two mirror-symmetrically flanking the coupling region is provided vibration damper.
  • the vibration dampers are used to compensate for vibrations of the rear attachment and in particular of the milling carrier about a vehicle longitudinally extending axis of vibration.
  • the vibration damper are designed to act hydraulically.
  • a snow grooming vehicle in the form of a tracked vehicle is used to design and maintain snow slopes.
  • a tracked vehicle is equipped with a rear tiller 1 according to the Fig. 1 and 2 provided, wherein the rear tiller 1 represents a rear mounted implement and thus a piste grooming device in the context of the invention.
  • the rear tiller 1 is over a central Coupling unit 2, which is basically known, connected to a corresponding coupling part in the form of a Heckellaismes at a rear of the tracked vehicle.
  • the rear tiller 1 is provided with hydraulic motors for a Fräswellenantrieb and with various hydraulic adjusting cylinders, which are controlled by a vehicle hydraulic system of the tracked vehicle.
  • the rear tiller 1 is connected in the state attached to the tracked vehicle by means of appropriate hydraulic lines to the vehicle hydraulic system.
  • the coupling of the rear tiller 1 with the rear of the vehicle and the hydraulic connection of the rear tiller 1 to the vehicle hydraulic system are known from "PistenBully" chain vehicles of the Applicant, so that it need not be discussed here at this point.
  • the rear tiller 1 can be coupled with the central coupling unit 2 to the rear implement carrier of the tracked vehicle in basically known manner.
  • the tail mill 1 has a milling carrier 3, which is provided with the central coupling unit 2.
  • the milling carrier 3 is mounted at least slightly vibrationally movable relative to the central coupling unit 2 about an axis of rotation D oriented approximately horizontally in the vehicle longitudinal direction.
  • the central coupling unit 2 has at mirror-symmetrical to a vertical central longitudinal plane provided side areas recordings for two vibration dampers 19, dampen the vibrations of the milling carrier 3 relative to the central coupling unit 2 in particular about the described axis of rotation D.
  • the vibration dampers 19 are designed hydraulically and engage with their lower areas on bearing blocks of a cross member 6 of the milling carrier 3.
  • the milling carrier 3 has two longitudinal members 4, which - in a forward direction of travel of the tracked vehicle and the rear tiller 1 - extend backwards and downwards and are connected at their rear end ends with another cross member 5 extending in the transverse direction of the milling.
  • the cross member 5 is rotationally symmetrical Profile executed, in this case as a cylinder profile.
  • a pivot axis for a multi-part impact housing 7 is provided, in which a in Fig. 2 recognizable Fräswellenan Aunt F is stored.
  • the impact housing 7 has three parts 7a, 7b, 7c, in each of which a milling shaft is rotatably mounted.
  • the three baffle housing sections 7a to 7c are interconnected via carrier profiles to the common baffle housing 7.
  • the entire impact housing 7 including the multi-part Fräswellenan ever F is pivotally mounted by means of a pivoting hydraulic 13, 17 about a coaxial with the cross member 5 aligned pivot axis.
  • the pivot axis is - seen in the normal forward direction of travel of the tracked vehicle and the rear tiller 1 - at a distance behind an axis of rotation of in Fig. 2 partially detectable Fräswellenan whatsoever F positioned.
  • the pivot axis for the impact housing and the Fräswellenanowski is also offset from the level of the axis of rotation of the Fräswellenan instruct F offset upwards.
  • the pivot axis for impact housing and Fräswellenan emblem is thus positioned both rearwardly and upwardly offset from the axis of rotation of the Fräswellenan expect F.
  • the pivoting hydraulic system 13, 17 has two hydraulic cylinders 13, which are arranged on bearing blocks 16, which are fixedly connected to the cross member of the milling carrier 3 ( Fig. 1 ).
  • the hydraulic cylinders 13 engage with bridge-shaped carrier profiles 17, which surround the impact housing 7 at the top.
  • the longitudinal members 4 of the milling carrier extend above the baffle housing 7 over this time, as based on the Fig. 1 and 2 is recognizable.
  • the entire impact housing 7 including the Fräswellenan Aunt F within the baffle housing are thus at least substantially pivotable about a central longitudinal axis of the cross member 5 of the cutter carrier 3.
  • each support arm 9 is designed rocker-like and pivotally mounted in the region of a limited approximately in the longitudinal direction of the rear tiller 1 and thus directed approximately in the vehicle longitudinal direction pivot axis 12 centrally.
  • the two support arms 9 are fastened in the region of their lateral front ends to support webs 10, which are articulated on a dimensionally stable support strip 21 of a finisher 8 of a smoothing device.
  • the finisher 8 extends over the entire width of the tail mill 1 and is designed as a continuous, flexible smoothing structure.
  • the finisher 8 connects at the rear to the baffle housing 7.
  • the support strip 21 is positively and extensively connected to the finisher 8 and extends over almost the entire width - seen in the transverse direction of the tailer 1 - the finisher 8.
  • the support bar 21 is about a parallel to the axis of rotation of the Fräswellenanowskiowskiowskiowskiowski as well as the support bar 21 and extends over almost the entire width - seen in the transverse direction of the tailer 1 - the finisher 8.
  • the support bar 21 is about a parallel to the axis of rotation of the Fräswellenanssen F aligned pivot axis in the area of the total four support webs 10 pivotally supported on the support arms 9.
  • adjusting means are provided in the form of small mechanical screws 11 extending along each support bar 10 and supported on the support web 10 and thus also on the support arm 9 and on the other hand on the support strip 21 on the one hand.
  • the support bar 21 is adjustable in angle relative to the support arms 9, so that the finisher 8 can be made steeper or flatter in a corresponding manner.
  • the finisher 8 extends beyond the width of the baffle housing 7 to both sides of the vehicle. At the end faces of the baffle housing 7, a side finisher 14 is provided in each case, which smoothes in a basically known manner laterally thrown snow or ice edges.
  • the finisher 8 is behind the side finishers 14 of the runway surface in these edge areas the final smoothing.
  • snow catchers 15 are provided on the cutter carrier 3 to prevent that flies in the operation of the tracked vehicle from the chains high-tailed snow on the tail mill 1 and thus reduces the quality of the machined by the rear milling 1 slope surface or the top of the rear tiller 1 with snow added.
  • the embodiment according to the Fig. 3 and 4 is designed identically in terms of their functional structure as the tail mill 1 after the Fig. 1 and 2 , Functionally identical parts and sections of the rear tiller 1 'are provided with the same reference numerals with the addition of the character "'".
  • the essential difference is that both the baffle housing 7 'and the Fräswellenan Aunt F' are only two parts and not designed in three parts, as in the embodiment of the Fig. 1 and 2 the case was. To avoid repetition is therefore on the description of the embodiment according to the Fig. 1 and 2 directed.
  • the tail mill 1 ' has a baffle housing 7' and a Fräswellenan Ich F ', which are mounted on a pivotable about the axis of rotation of the Fräswellenan whatsoever F' pivot axis of the cutter support 3 '.
  • the Fräswellenan himself is thus pushed while driving the tracked vehicle through the rear force application on the cutter support 3'.
  • the cutter carrier 3 ' is like the embodiments of the Fig. 1 and 2 provided with two vibration dampers, not shown, which are arranged on corresponding bearing blocks 20 in the region of the central coupling unit 2 'and in the region of the upper cross member 6' of the Fräsenlisms 3 '.
  • the side finisher 14 ' are structurally designed differently and extend laterally outward relative to the side edges of the finisher 8'. Regarding further constructive details of the tail mill 1 'is on the Fig. 3 and 4 directed. All there recognizable technical features are essential to the invention. This applies equally to the representations in the Fig. 3 and 4 ,
  • the relevant for the alignment of the finisher 8, 8 'support bar 21, 21' is held by means of the mechanical adjusting or adjusting screws 11, 11 'and the support webs 10, 10' at least substantially rigid relative to the cutter carrier 3, 3 ', so that by a pivoting of the baffle housing 7, 7 'and the Fräswellenan whatsoever F, F' at most in the normal direction of travel in front of the support bar 21, 21 'located portion of the finisher 8, 8' is moved with.
  • the smoothing function of the finisher 8, 8 ' is thus independent of the pivotal position of the impact housing 7, 7' and the Fräswellenanssen F, F '.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Harvester Elements (AREA)
  • Road Repair (AREA)
  • Agricultural Machines (AREA)
  • Adjustment And Processing Of Grains (AREA)

Claims (5)

  1. Dispositif d'entretien de pistes pour un véhicule à chenilles, comprenant un support de fraise (3, 3') ajustable par rapport au véhicule à chenilles autour de plusieurs axes, ledit support comportant une traverse (5, 5') s'étendant dans la direction transversale de la fraise, comprenant un agencement d'arbre de fraisage (F, F') disposé de manière rotatif dans un boîtier déflecteur (7, 7'), ainsi que comprenant un dispositif de lissage disposé - vu dans le sens d'avancement du véhicule automobile - derrière l'agencement d'arbre de fraisage (F, F') et retenu de manière ajustable par le biais d'au moins un moyen de réglage, dans lequel le boîtier déflecteur (7, 7') et l'agencement d'arbre de fraisage (F, F') sont retenus de manière ajustable autour d'un axe de pivotement sur le support de fraise (3, 3'), ledit axe se situant - vu dans le sens d'avancement du véhicule à chenilles - derrière un axe de rotation de l'agencement d'arbre de fraisage (F, F'),
    dans lequel le dispositif de lissage présente une formation de lissage flexible sous forme d'un finisseur (8, 8'),
    dans lequel le finisseur (8, 8') se joint au boîtier déflecteur (7, 7') sur le côté arrière, dans lequel la traverse (5, 5') présente des prolongements de support (16, 16') reliés à la traverse (5, 5') par une connexion rigide,
    caractérisé en ce que
    des bras de support (9, 9') conçus de type bascule d'une unité de support pour le finisseur (8, 8') flexible du dispositif de lissage sont montés sur les prolongements de support (16, 16') pour un mouvement basculant limité autour des axes de pivotement (12, 12') s'étendant dans la direction longitudinale de la fraise,
    dans lequel chacun des bras de support (9, 9') est fixé dans la région de ses faces d'extrémité laterales sur des arêtes d'appui (10) articulées sur une barrette d'appui (21) présentant stabilité dimensionnelle du finisseur (8, 8') du dispositif de lissage,
    dans lequel la barrette d'appui (21) est retenue sur les bras de support (9, 9') de manière pivotante autour d'un axe de pivotement orienté parallèlement par rapport à l'axe de rotation de l'agencement d'arbre de fraisage (F, F') dans la région des arêtes d'appui (10),
    de façon à ce que la fonction de lissage du finisseur (8, 8') soit indépendant du position de pivotement du boîtier déflecteur (7, 7') et de l'agencement d'arbre de fraisage (F, F').
  2. Dispositif d'entretien de pistes selon la revendication 1, caractérisé en ce que le support de fraise (3, 3') comporte deux longerons (4, 4') s'étendant au moins approximativement dans la direction longitudinale du véhicule, chevauchant le boîtier déflecteur (7, 7') et reliés entre aux sur les côtés d'extrémité par la traverse (5, 5').
  3. Dispositif d'entretien de pistes selon la revendication 1, caractérisé en ce que le support de fraise (3, 3') est associé à au moins un amortisseur de vibrations (19) qui est disposé entre une région de couplage centrale (2, 2'), par le biais duquel le dispositif d'entretien de pistes peut être couplé au véhicule automobile, et le support de fraise (3, 3').
  4. Dispositif d'entretien de pistes selon la revendication 3, caractérisé en ce que deux amortisseurs de vibrations (19) flanquant la région de couplage (2, 2') sont prévus de façon symétrique.
  5. Dispositif d'entretien de pistes selon l'une des revendications 3 ou 4, caractérisé en ce que les amortisseurs de vibrations (19) sont conçus de manière à ce qu'ils présentent une action hydraulique.
EP07021095.0A 2006-11-23 2007-10-29 Dispositif d'entretien de pistes pour un véhicule à chenilles Active EP1925746B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006057272A DE102006057272B4 (de) 2006-11-23 2006-11-23 Pistenpflegevorrichtung für ein Kraftfahrzeug, insbesondere ein Kettenfahrzeug

Publications (3)

Publication Number Publication Date
EP1925746A2 EP1925746A2 (fr) 2008-05-28
EP1925746A3 EP1925746A3 (fr) 2009-08-05
EP1925746B1 true EP1925746B1 (fr) 2017-05-31

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EP07021095.0A Active EP1925746B1 (fr) 2006-11-23 2007-10-29 Dispositif d'entretien de pistes pour un véhicule à chenilles

Country Status (4)

Country Link
US (1) US7546700B2 (fr)
EP (1) EP1925746B1 (fr)
CA (1) CA2611548C (fr)
DE (1) DE102006057272B4 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20159370A1 (it) * 2015-12-14 2017-06-14 Prinoth Spa Apparato per realizzare una pista da sci di fondo
IT201800003000A1 (it) 2018-02-23 2019-08-23 Prinoth Spa Fresa da neve e relativo metodo di regolazione
IT201900002017A1 (it) * 2019-02-12 2020-08-12 Prinoth Spa Fresa da neve per la preparazione di piste da sci
CN112195692B (zh) * 2020-09-28 2021-07-13 广州市鼎隆机电安装有限公司 一种城市有轨电车轨道辅装设备
DE102020215740A1 (de) 2020-12-11 2022-06-15 Kässbohrer Geländefahrzeug Aktiengesellschaft Heckfräse für eine Pistenraupe zur Schneeflächenbearbeitung

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2001044582A1 (fr) * 1999-12-17 2001-06-21 Bombardier Inc. Dameuse munie d'un ensemble fraise a neige a geometrie variable ameliore

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DE2946796A1 (de) * 1979-11-20 1981-05-27 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Nachlaufgeraet fuer schneefahrzeuge, insbesondere zur pistenpflege
DE3333942A1 (de) * 1983-09-20 1985-03-28 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Schneefahrzeug
DE8522791U1 (de) 1985-08-07 1985-12-05 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Pistenfahrzeug mit höhenverstellbarer Bodenbearbeitungs-, insbesondere Schneefräsvorrichtung
DE8528096U1 (de) 1985-10-02 1985-11-14 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Schneefräse
US4775014A (en) * 1986-02-06 1988-10-04 Bombardier-Rotax-Wein Productions- Und Vertriebsgesellschaft M.B.H. Ground-working implement
CA2008235C (fr) 1990-01-22 1999-08-31 Michel Pelletier Machine a travailler la neige, de geometrie variable
DE9217472U1 (de) 1992-12-21 1993-02-25 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Pistenpflegevorrichtung
DE9315880U1 (de) * 1993-10-18 1994-02-03 Karl Kässbohrer Fahrzeugwerke GmbH, 89077 Ulm Vorrichtung zur Pistenpflege
DE29500818U1 (de) * 1995-01-19 1995-03-02 Kässbohrer Geländefahrzeug GmbH, 89077 Ulm Pistenpflegegerät
US5809671A (en) * 1995-08-08 1998-09-22 Lmc Operating Corp. Tiller with adjustable depth cutter and snow comb entry angle
DE29703678U1 (de) 1997-02-28 1998-06-25 Kässbohrer Geländefahrzeug GmbH, 89250 Senden Pistenpflegevorrichtung
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Publication number Priority date Publication date Assignee Title
WO2001044582A1 (fr) * 1999-12-17 2001-06-21 Bombardier Inc. Dameuse munie d'un ensemble fraise a neige a geometrie variable ameliore

Also Published As

Publication number Publication date
CA2611548C (fr) 2015-03-24
DE102006057272A1 (de) 2008-05-29
EP1925746A3 (fr) 2009-08-05
EP1925746A2 (fr) 2008-05-28
DE102006057272B4 (de) 2011-11-10
US20080184602A1 (en) 2008-08-07
US7546700B2 (en) 2009-06-16
CA2611548A1 (fr) 2008-05-23

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