EP0804650B1 - Ski run maintenance tool - Google Patents

Ski run maintenance tool Download PDF

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Publication number
EP0804650B1
EP0804650B1 EP95937022A EP95937022A EP0804650B1 EP 0804650 B1 EP0804650 B1 EP 0804650B1 EP 95937022 A EP95937022 A EP 95937022A EP 95937022 A EP95937022 A EP 95937022A EP 0804650 B1 EP0804650 B1 EP 0804650B1
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EP
European Patent Office
Prior art keywords
renovator
teeth
grooming device
snow grooming
rake blade
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.)
Expired - Lifetime
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EP95937022A
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German (de)
French (fr)
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EP0804650A1 (en
Inventor
Helmut Kanzler
Gerd Friedmann
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Kaessbohrer Gelaendefahrzeug AG
Original Assignee
Kassbohrer Gelandefahrzeug AG
Kaessbohrer Gelaendefahrzeug AG
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Publication of EP0804650A1 publication Critical patent/EP0804650A1/en
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    • 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 with a pre-built snow blade, such as Example disclosed in EP 10 43 02 A1. It is used to edit and process Ski slopes.
  • the snow plow is adjustable on the front of the piste grooming vehicle and levels, loads or removes the snow.
  • Subordinate care devices such as Milling, rolling, etc. prepare a smooth slope.
  • the invention has for its object a piste grooming device of the type mentioned To create genus with which the easiest possible processing of hard ski slopes is possible. This object is achieved by the features of Main claim solved.
  • the use of the renovator teeth can be swiveled as required be managed. With normal softer The renovator teeth are on standby, they can be swung out into the working position with ice plates become. While the snow plow clears snow, can at the same time with the renovator teeth, hard slope surface be worked on in depth. Soft snow can be mixed with the loosened ice particles.
  • the renovator teeth can be different by pivoting be set low. With that for conventional Knife blades known control for the floating position can be an almost constant depth treatment of the subsurface respectively.
  • regenerator teeth are on a common one Shaft arranged. It can be used across the width of the vehicle distributed renovator teeth together on the shaft swivel.
  • Two shafts with renovator teeth can be particularly advantageous be provided on the dozer blade, one each Shaft on each side of the longitudinal axis of the piste grooming device is arranged. This allows the renovator teeth on the left and right side of the dozer blade independently be pivoted so that one side e.g. deeper is processed as the other. This has proven particularly useful also when the dozer blade is tilted or when cornering the slope grooming device.
  • One end of the actuator can be used with the dozer blade and at the other end with at least one of the renovator teeth be connected. This will direct the shaft over the actuation of a renovator tooth pivoted as Lever serves.
  • a lever can also be arranged in a rotationally fixed manner on the shaft be connected to the actuator.
  • sliding elements on the dozer blade are arranged, at least in the working position of the renovator teeth glide around the snow plow on the slope surface to keep in floating position.
  • sliding plates can be selected.
  • the height and / or the inclination is a variant of the invention the sliding elements on the dozer blade can be changed, whereby they are adapted to the respective slope profile can. Tilting of the sliding elements is also possible on the dozer blade.
  • the dozer blade has an open U-shape in plan view, see above can at least behind each of the angled U-legs a sliding element can be provided. So that are the sliding elements stored at a large distance from each other and give the Räumschild a stable plain bearing on the slope surface.
  • the renovator teeth are preferably in at their end Driving direction angled like a claw. This will when driving, the penetration of the renovator teeth from the ready position relieved in the slope underground.
  • the hard surface is first from the protruding claw broken open and then broken open.
  • the shape of the claw determines the appropriate clod size or shape.
  • the Renovator teeth connected to a limit torque release device be that she swings back from the working position, when a renovator tooth hits stones and rocks. Of the The renovator tooth is then not damaged, but softens out. After passing the obstacle, the renovator teeth can then pivoted back into a lower working position become.
  • FIG. 1 shows the front section of a piste grooming device 1 shown on which a dozer blade 2 over a conventional Multi-joint bearing 3 is movably attached.
  • the dozer blade 2 has all the degrees of freedom of a conventional dozer blade.
  • the clearing blade 2 has a U-shaped plan view trained blade 4. It consists of two angled from a U base 5 laterally in the direction of travel U-leg 6 on. At the front lower side of the dozer blade 2, a lower edge 7 is attached, which over the Width of the dozer blade 2 be wave-shaped can.
  • each renovator tooth 11 has one end at one Shaft 9 attached.
  • a renovator tooth is unique in an approximately horizontal position (standby position) and once approximately vertical position (fully extended working position) shown. Between these two positions the renovator teeth 11 are infinitely adjustable.
  • each renovator tooth 11 is claw-shaped bent, with the curved side in the standby position points towards the underground and at the end one in the direction of travel has curved tip 12.
  • the renovator tooth 11 is, for example, also a wedge-shaped one Element suitable.
  • each renovator tooth 11 of each shaft 9 hydraulic cylinder-piston unit 13 there is one on each renovator tooth 11 of each shaft 9 hydraulic cylinder-piston unit 13 as an actuating device arranged.
  • the other end of the cylinder-piston unit is stored in the upper area on the back of the dozer blade 2.
  • each angled U-leg arranged as a sliding element, a sliding plate 14, the two pivot bearings 15 are rotatably mounted on the U-leg 6 and via a cross lever 16 on the dozer blade 2 is set.
  • the sliding plates 14 are in the floating position of the clearing blade 2 on the slope surface 17.
  • FIG 1 it is shown how in the vertical working position located renovator tooth 11 engages in the slope and behind in the area between the renovator tooth and rough in front of the chains 18 of the piste grooming device 1 Clods 19 leaves.
  • the chains 18 are the coarse Plaice 19 crushed into smaller pieces 20.
  • the renovator teeth 11 can on the cylinder-piston units 13 for breaking up hard or icy slopes swung out deeper and sunk into the slopes. They tear open the surface of the slopes in depth and leave coarse clods 19. The coarse clods are crushed by the subsequent chain 18 with the chain stays. The slope prepared in this way is then used by the Rear attachments attached to the vehicle, such as snow blowers, too processed a finished slope.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Lubricants (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Beans For Foods Or Fodder (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A ski run maintenance tool having a front-end moldboard and used to work and regenerate ski runs is improved to enable hard ski pistes to be worked in the simplest possible way. This is accomplished by equipping the lower back side of the moldboard (2) with rotatable renovator teeth (11) which can be pivoted through a setting device (13) from a ready position into a working position in which they cut into the base layer of the ski run.

Description

Die Erfindung betrifft ein Pistenpflegegerät mit einem vorgebauten Räumschild, wie zum Beispiel in der EP 10 43 02 A1 offenbart. Es dient zum Bearbeiten und Aufbereiten von Skipisten. Das Räumschild ist an der Front des Pistenpflegefahrzeugs verstellbar gelagert und ebnet, verfrachtet oder beseitigt den Schnee. Nachgeordnete Pflegegeräte, wie Fräsen, Walzen usw. bereiten eine glatte Piste auf.The invention relates to a piste grooming device with a pre-built snow blade, such as Example disclosed in EP 10 43 02 A1. It is used to edit and process Ski slopes. The snow plow is adjustable on the front of the piste grooming vehicle and levels, loads or removes the snow. Subordinate care devices, such as Milling, rolling, etc. prepare a smooth slope.

Obwohl sich diese Geräte in der Praxis bewährt haben, vermögen sie sehr harte oder vereiste Pisten oft nur ungenügend zu bearbeiten.Although these devices have proven themselves in practice, they can be very hard or Iced slopes can often only be processed insufficiently.

Von gattungsfremden Planierfahrzeugen für Skiloipen, wie in der DE 30 29 221 C2 beschrieben, ist bereits ein Vorbaugerät mit einem auf einem Vorder- und einem Hinterschlitten gestützten Rahmen bekannt, zwischen denen eine Fräse angeordnet ist. Sie soll eine harte Skiloipe lockem, so daß anschließend die Loipenspuren gezogen werden können.From non-generic leveling vehicles for ski trails, as described in DE 30 29 221 C2, is already a front-mounted device with one on a front and one back slide supported frame known, between which a milling cutter is arranged. she a hard ski trail should be lure, so that the trail tracks are then drawn can.

Der Erfindung liegt die Aufgabe zugrunde, ein Pistenpflegegerät der eingangs genannten Gattung zu schaffen, mit dem ein möglichst einfaches Bearbeiten von harten Skipisten möglich ist. Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Hauptanspruches gelöst.The invention has for its object a piste grooming device of the type mentioned To create genus with which the easiest possible processing of hard ski slopes is possible. This object is achieved by the features of Main claim solved.

Mit den Renovatorzähnen können harte und vereiste Pisten grobschollig aufgerissen werden. Diese Schollen werden durch das nachfolgende Pistenfahrzeug mit den Kettenstegen zerkleinert. Die so vorbereitete Piste kann dann von am Fahrzeugheck angebauten Zusatzgeräten weiter bearbeitet werden.With the renovator teeth, hard and icy slopes can be torn open become. These clods are made by the following snow groomer with the chain stays crushed. The slope prepared in this way can then be attached to the rear of the vehicle Additional devices can be processed further.

Der Einsatz der Renovatorzähne kann durch deren Verschwenkbarkeit je nach Bedarf geregelt werden. Bei normal weicher Piste sind die Renovatorzähne in Bereitschaftsstellung, sie können bei Eisplatten in die Arbeitsstellung ausgeschwenkt werden. Während das Räumschild Schnee beseitigt, kann gleichzeitig mit den Renovatorzähnen harter Pistenuntergrund in der Tiefe bearbeitet werden. Weicher Schnee kann mit den gelockerten Eispartikel vermischt werden.The use of the renovator teeth can be swiveled as required be managed. With normal softer The renovator teeth are on standby, they can be swung out into the working position with ice plates become. While the snow plow clears snow, can at the same time with the renovator teeth, hard slope surface be worked on in depth. Soft snow can be mixed with the loosened ice particles.

Die Renovatorzähne können durch Verschwenken unterschiedlich tief eingestellt werden. Mit der für herkömmliche Räumschilder bekannten Steuerung für die Schwimmstellung kann eine annähernd konstante Tiefenbearbeitung des Untergrunds erfolgen.The renovator teeth can be different by pivoting be set low. With that for conventional Knife blades known control for the floating position can be an almost constant depth treatment of the subsurface respectively.

Vorzugsweise sind mehrere Renovatorzähne auf einer gemeinsamen Welle angeordnet. Damit lassen sich über die Fahrzeugbreite verteilte Renovatorzähne gemeinsam über die Welle verschwenken.Preferably, several renovator teeth are on a common one Shaft arranged. It can be used across the width of the vehicle distributed renovator teeth together on the shaft swivel.

Besonders vorteilhaft können zwei Wellen mit Renovatorzähnen an dem Räumschild vorgesehen sein, wobei jeweils eine Welle zu jeder Seite der Längsachse des Pistenpflegegerätes angeordnet ist. Damit können die Renovatorzähne auf der linken und rechten Seite des Räumschildes unabhängig voneinander verschwenkt werden, so daß eine Seite z.B. tiefer bearbeitet wird als der andere. Besonders bewährt sich dies auch bei Schrägstellung des Räumschildes oder bei Kurvenfahrten des Pistenpflegegerätes.Two shafts with renovator teeth can be particularly advantageous be provided on the dozer blade, one each Shaft on each side of the longitudinal axis of the piste grooming device is arranged. This allows the renovator teeth on the left and right side of the dozer blade independently be pivoted so that one side e.g. deeper is processed as the other. This has proven particularly useful also when the dozer blade is tilted or when cornering the slope grooming device.

Die Stelleinrichtung kann mit einem Ende mit dem Räumschild und mit dem anderen Ende mit mindestens einem der Renovatorzähne verbunden sein. Dadurch wird die Welle direkt über die Betätigung eines Renovatorzahnes verschwenkt, der als Hebel dient. An der Welle kann auch drehfest ein Hebel angeordnet sein, der mit der Stelleinrichtung verbunden ist.One end of the actuator can be used with the dozer blade and at the other end with at least one of the renovator teeth be connected. This will direct the shaft over the actuation of a renovator tooth pivoted as Lever serves. A lever can also be arranged in a rotationally fixed manner on the shaft be connected to the actuator.

Es wird vorgeschlagen, daß an dem Räumschild Gleitelemente angeordnet sind, die mindestens in Arbeitsstellung der Renovatorzähne auf der Pistenoberfläche gleiten um das Räumschild in Schwimmstellung zu halten. Als Gleitelemente können beispielsweise Gleitbleche gewählt werden.It is proposed that sliding elements on the dozer blade are arranged, at least in the working position of the renovator teeth glide around the snow plow on the slope surface to keep in floating position. Can be used as sliding elements For example, sliding plates can be selected.

Als Variante der Erfindung ist die Höhe und/oder die Neigung der Gleitelemente an dem Räumschild veränderbar, wodurch sie an das jeweilige Pistenprofil angepaßt werden können. Möglich ist auch eine Kipplagerung der Gleitelemente an dem Räumschild.The height and / or the inclination is a variant of the invention the sliding elements on the dozer blade can be changed, whereby they are adapted to the respective slope profile can. Tilting of the sliding elements is also possible on the dozer blade.

Besitzt das Räumschild in Draufsicht eine offene U-Form, so kann hinter jedem der abgewinkelten U-Schenkel mindestens ein Gleitelement vorgesehen sein. Damit sind die Gleitelemente mit großem Abstand voneinander gelagert und geben dem Räumschild eine stabile Gleitlagerung auf der Pistenoberfläche.If the dozer blade has an open U-shape in plan view, see above can at least behind each of the angled U-legs a sliding element can be provided. So that are the sliding elements stored at a large distance from each other and give the Räumschild a stable plain bearing on the slope surface.

Vorzugsweise sind die Renovatorzähne an ihrem Ende in Fahrtrichtung krallenförmig abgewinkelt. Hierdurch wird beim Fahren das Eindringen der Renovatorzähne aus der Bereitschaftsstellung in den Pistenuntergrund erleichtert. Der harte Untergrund wird zuerst von der vorstehenden Kralle aufgebrochen und dann nachgebrochen. Die Krallenform bestimmt die geeignete Schollengröße bzw. -form.The renovator teeth are preferably in at their end Driving direction angled like a claw. This will when driving, the penetration of the renovator teeth from the ready position relieved in the slope underground. The hard surface is first from the protruding claw broken open and then broken open. The shape of the claw determines the appropriate clod size or shape.

Besonders vorteilhaft kann zwischen den Renovatorzähnen und der Front des Pistenpflegegerätes mindestens ein Abwehrschild angeordnet sein. Das hinter den Renovatorzähnen oberhalb des Untergrundes angeordnete Abwehrschild bewirkt, daß aufgebrochene hochgeschleuderte Schollen auf den Untergrund zurückgeworfen werden. In besonderer Weise können die Renovatorzähne mit einer Grenzmomentlöseeinrichtung verbunden sein, die sie aus der Arbeitsstellung zurückschwenkt, wenn ein Renovatorzahn auf Steine und Felsen trifft. Der Renovatorzahn wird dann nicht beschädigt, sondern weicht aus. Nach Überfahren des Hindernisses können die Renovatorzähne dann wieder in eine tiefere Arbeitsstellung verschwenkt werden. Can be particularly advantageous between the renovator teeth and at least one defense shield on the front of the piste grooming device be arranged. That behind the renovator teeth Defense shield arranged above the ground causes that broken-up, thrown floes onto the ground be thrown back. In a special way, the Renovator teeth connected to a limit torque release device be that she swings back from the working position, when a renovator tooth hits stones and rocks. Of the The renovator tooth is then not damaged, but softens out. After passing the obstacle, the renovator teeth can then pivoted back into a lower working position become.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachstehend erläutert. Es zeigen:

Fig. 1
eine Seitenansicht der Frontpartie eines erfindungsgemäßen Pistenpflegegerätes mit Räumschild, wobei jeweils ein Renovatorzahn in Arbeitsstellung und Bereitschaftsstellung dargestellt ist und
Fig. 2
eine Draufsicht auf ein Räumschild mit Reno vatorzähnen mit zwei seitlichen, verstellbaren Gleitelementen.
An embodiment of the invention is shown in the drawing and is explained below. Show it:
Fig. 1
a side view of the front part of a piste grooming device according to the invention with a clearing blade, wherein a renovator tooth is shown in the working position and standby position and
Fig. 2
a plan view of a dozer blade with Reno vatorzähne with two side, adjustable sliding elements.

In Figur 1 ist die Frontpartie eines Pistenpflegegerätes 1 dargestellt, an der ein Räumschild 2 über eine herkömmliche Mehrgelenkslagerung 3 bewegbar angebracht ist. Das Räumschild 2 hat alle Freiheitsgrade eines herkömmlichen Räumschildes.FIG. 1 shows the front section of a piste grooming device 1 shown on which a dozer blade 2 over a conventional Multi-joint bearing 3 is movably attached. The dozer blade 2 has all the degrees of freedom of a conventional dozer blade.

Das Räumschild 2 weist nach Figur 2 eine in Draufsicht U-förmig ausgebildete Schaufel 4 auf. Sie besteht aus zwei von einer U-Basis 5 seitlich in Fahrtrichtung abgewinkelte U-Schenkel 6 auf. An der vorderen unteren Seite des Räumschildes 2 ist eine Unterkante 7 angebracht, die über die Breite des Räumschildes 2 wellenförmig ausgebildet sein kann.According to FIG. 2, the clearing blade 2 has a U-shaped plan view trained blade 4. It consists of two angled from a U base 5 laterally in the direction of travel U-leg 6 on. At the front lower side of the dozer blade 2, a lower edge 7 is attached, which over the Width of the dozer blade 2 be wave-shaped can.

An der unteren hinteren Seite des Räumschildes 2 sind symmetrisch zur Fahrzeuglängsachse 8 zwei Wellen 9 angeordnet, die über Lagerblöcke 10 mit dem Räumschild 2 verbunden sind. Beide ragen seitlich über die U-Basis 5 freistehend hinaus und erstrecken sich über den Bereich der U-Schenkel 6.On the lower rear side of the dozer blade 2 are symmetrical arranged to the vehicle longitudinal axis 8 two shafts 9, which are connected to the clearing blade 2 via bearing blocks 10 are. Both protrude laterally over the U-base 5 and extend beyond the area of the U-legs 6.

An den Wellen 9 sind gleichmäßig beabstandet voneinander Renovatorzähne 11 angeordnet, die in Wellenrichtung alle gleichmäßig aufgereiht miteinander fluchtend angeordnet sind. Jeder Renovatorzahn 11 ist mit einem Ende an einer Welle 9 angebracht. In Figur 1 ist ein Renovatorzahn einmal in etwa horizontaler Lage (Bereitschaftsstellung) und einmal in etwa vertikaler Lage, (voll ausgefahrenen Arbeitsstellung) dargestellt. Zwischen diesen beiden Stellungen sind die Renovatorzähne 11 stufenlos verstellbar.At the shafts 9 are evenly spaced from each other Renovator teeth 11 arranged in the shaft direction all arranged evenly aligned with each other are. Each renovator tooth 11 has one end at one Shaft 9 attached. In Figure 1, a renovator tooth is unique in an approximately horizontal position (standby position) and once approximately vertical position (fully extended working position) shown. Between these two positions the renovator teeth 11 are infinitely adjustable.

Das freie Ende jedes Renovatorzahnes 11 ist krallenförmig gebogen, wobei die gebogene Seite in Bereitschaftsstellung zum Untergrund hin deutet und an ihrem Ende eine in Fahrtrichtung gebogene Spitze 12 aufweist.The free end of each renovator tooth 11 is claw-shaped bent, with the curved side in the standby position points towards the underground and at the end one in the direction of travel has curved tip 12.

Als Renovatorzahn 11 ist beispielsweise auch ein keilförmiges Element geeignet.The renovator tooth 11 is, for example, also a wedge-shaped one Element suitable.

An jeweils einem Renovatorzahn 11 jeder Welle 9 ist eine hydraulische Zylinder-Kolbeneinheit 13 als Stelleinrichtung angeordnet. Das andere Ende der Zylinder-Kolbeneinheit ist im oberen Bereich an der Rückseite des Räumschildes 2 gelagert.There is one on each renovator tooth 11 of each shaft 9 hydraulic cylinder-piston unit 13 as an actuating device arranged. The other end of the cylinder-piston unit is stored in the upper area on the back of the dozer blade 2.

An der hinteren Seite jedes abgewinkelten U-Schenkels 6 ist als Gleitelement ein Gleitblech 14 angeordnet, das über zwei Schwenklager 15 an dem U-Schenkel 6 verdrehbar gelagert ist und über einen Querhebel 16 an dem Räumschild 2 festgelegt ist. Die Gleitbleche 14 liegen in Schwimmstellung des Räumschildes 2 auf der Pistenoberfläche 17 auf.There is 6 on the rear side of each angled U-leg arranged as a sliding element, a sliding plate 14, the two pivot bearings 15 are rotatably mounted on the U-leg 6 and via a cross lever 16 on the dozer blade 2 is set. The sliding plates 14 are in the floating position of the clearing blade 2 on the slope surface 17.

In Figur 1 ist dargestellt, wie der in vertikaler Arbeitsstellung befindliche Renovatorzahn 11 in die Piste eingreift und hinter sich im Bereich zwischen dem Renovatorzahn und vor den Ketten 18 des Pistenpflegegerätes 1 grobe Schollen 19 hinterläßt. Durch die Ketten 18 werden die groben Schollen 19 zu kleineren Stücken 20 zerkleinert.In Figure 1 it is shown how in the vertical working position located renovator tooth 11 engages in the slope and behind in the area between the renovator tooth and rough in front of the chains 18 of the piste grooming device 1 Clods 19 leaves. The chains 18 are the coarse Plaice 19 crushed into smaller pieces 20.

Im folgenden wird die Funktionsweise des erfindungsgemäßen Pistenpflegegerätes näher erläutert. Zu Beginn befinden sich die beiden Wellen 9 mit den Renovatorzähnen 11 in horizontaler Bereitschaftsstellung. Das Räumschild 2 wird nun auf die Pistenoberfläche 17 abgesenkt, bis die Gleitbleche 14 aufliegen und die Unterkante 7 beim Fahren bereits leicht in die Pistenoberfläche 17 eindringt. In dieser Stellung wird das Räumschild 2 in Schwimmstellung gefahren und gleitet auf der Pistenoberfläche 17.The following is the operation of the invention Snow groomer explained. Are at the beginning the two shafts 9 with the renovator teeth 11 in horizontal Standby. The dozer blade 2 is now lowered onto the slope surface 17 until the sliding plates 14 rest and the lower edge 7 already when driving easily penetrates the slope surface 17. In this Position, the clearing blade 2 is moved into the floating position and glides on the slope surface 17.

Die Renovatorzähne 11 können über die Zylinder-Kolbeneinheiten 13 zum Aufbrechen von harten oder vereisten Pisten tiefer ausgeschwenkt und in die Piste versenkt werden. Dabei reißen sie den Pistenuntergrund in der Tiefe auf und hinterlassen grobe Schollen 19. Die groben Schollen werden von dem nachfolgenden Ketten 18 mit den Kettenstegen zerkleinert. Die so vorbereitete Piste wird dann von dem am Fahrzeugheck angebauten Zusatzgeräten, wie Schneefräse, zu einer fertigen Piste bearbeitet.The renovator teeth 11 can on the cylinder-piston units 13 for breaking up hard or icy slopes swung out deeper and sunk into the slopes. They tear open the surface of the slopes in depth and leave coarse clods 19. The coarse clods are crushed by the subsequent chain 18 with the chain stays. The slope prepared in this way is then used by the Rear attachments attached to the vehicle, such as snow blowers, too processed a finished slope.

Claims (8)

  1. A snow grooming device (1) provided with a rake blade (2) at the front end thereof,
    characterized in that
    renovator teeth (11) are rotatably arranged on the lower rear side of the rake blade (2), said renovator teeth (11) being adapted to be pivoted via an adjustment device (13) from a stand-by position to an operating position at which they engage the piste foundation.
  2. A snow grooming device according to claim 1,
    characterized in that
    a plurality of renovator teeth (11) is supported on a common shaft (9) on said rake blade.
  3. A snow grooming device according to claim 1 or 2,
    characterized in that
    at least two shafts (9) with renovator teeth (11) are provided on said rake blade (2), one shaft (9) being arranged on each side of the longitudinal axis (8) of the snow grooming device (1).
  4. A snow grooming device according to claim 2 or 3,
    characterized in that,
    when seen in a top view, the rake blade (2) has an approximately U-shaped structural design, said U being open in the direction of movement and said shaft(s) (9) being supported on the U-base (5) and extending also laterally beyond the U-legs (6) which extend at an angle.
  5. A snow grooming device according to claim 3 or 4,
    characterized in that
    each shaft (9) is adapted to be pivoted via a separate adjustment device (13) having preferably one end connected to the rake blade (2) and the other end to at least one of the renovator teeth (11).
  6. A snow grooming device according to one of the preceding claims,
    characterized in that
    the rake blade (2) has arranged thereon sliding elements (14) which slide on the surface (17) of the piste, at least at the operating position of the renovator teeth (11), and which are preferably provided behind each of the U-legs extending at an angle.
  7. A snow grooming device according to claim 6,
    characterized in that
    the level and/or the inclination of the sliding elements (14) on the rake blade (2) is/are variable.
  8. A snow grooming device according to one of the preceding claims,
    characterized in that
    the renovator teeth (11) are curved like a claw at the end thereof, the curvature extending approximately in the direction of movement at the operating position of said renovator teeth (11).
EP95937022A 1995-01-19 1995-10-27 Ski run maintenance tool Expired - Lifetime EP0804650B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29500818U DE29500818U1 (en) 1995-01-19 1995-01-19 Snow groomer
DE29500818U 1995-01-19
PCT/EP1995/004233 WO1996022425A1 (en) 1995-01-19 1995-10-27 Ski run maintenance tool

Publications (2)

Publication Number Publication Date
EP0804650A1 EP0804650A1 (en) 1997-11-05
EP0804650B1 true EP0804650B1 (en) 1999-07-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95937022A Expired - Lifetime EP0804650B1 (en) 1995-01-19 1995-10-27 Ski run maintenance tool

Country Status (5)

Country Link
EP (1) EP0804650B1 (en)
AT (1) ATE182643T1 (en)
CA (1) CA2210539A1 (en)
DE (3) DE29500818U1 (en)
WO (1) WO1996022425A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29723018U1 (en) 1997-12-31 1999-04-29 Kaessbohrer Gelaendefahrzeug Ag Snow groomer
CA2256172A1 (en) * 1998-12-15 2000-06-15 Bombardier Inc. Multifunction joystick
DE102005050629A1 (en) * 2005-10-21 2007-04-26 Bomag Gmbh Heck finisher and method for smoothing a terrain surface
DE102006057272B4 (en) * 2006-11-23 2011-11-10 Kässbohrer Geländefahrzeug AG Piste grooming device for a motor vehicle, in particular a tracked vehicle
ITMI20071775A1 (en) 2007-09-14 2009-03-15 Rolic Invest Sarl ROLLING SNOW MILL FOR THE PREPARATION OF THE SNOWY COAT OF SKI SLOPES AND METHOD OF OPERATION OF THE SAME
IT1401157B1 (en) * 2010-07-28 2013-07-12 Rolic Invest Sarl METHOD OF TREATMENT OF THE SNOWY COAT OF SKI SLOPES AND EQUIPMENT TO IMPLEMENT THIS METHOD
DE102014200899A1 (en) * 2013-12-20 2015-06-25 Kässbohrer Geländefahrzeug AG Snow groomer and plow blade for such a snowcat

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CH486896A (en) * 1968-11-14 1970-03-15 Kahlbacher Anton Hump cutting device for the maintenance of ski slopes
US3685404A (en) * 1970-07-24 1972-08-22 Thiokol Chemical Corp Multi-way snow grooming apparatus for ski slopes
CH571350A5 (en) * 1974-05-04 1976-01-15 Schmidt Alfred Ing Gmbh
CH574255A5 (en) * 1974-08-28 1976-04-15 Baechler Anton R
US4346928A (en) * 1978-02-03 1982-08-31 Towsend Marvin S Snow plow attachment
CH633450A5 (en) * 1978-11-24 1982-12-15 Kempf & Co Ag DEVICE FOR PREPARING SNOW SLOPES.
US4306362A (en) * 1980-05-12 1981-12-22 Valley Engineering, Inc. Blade assembly
US4462172A (en) * 1982-09-29 1984-07-31 Valley Engineering, Inc. Quick disconnect blade tool mounting apparatus
DE3438714A1 (en) * 1984-10-23 1986-04-24 Horst 8580 Bayreuth Gorny Cross-country skiing course device which can be converted to a double-tyre roller
FR2650316B1 (en) * 1989-07-27 1991-11-22 Blandin Yves METHOD AND MACHINE FOR THE CONSTRUCTION OF ROAD EMBANKMENTS AND THE LIKE THAT PUSHES MATERIALS AND TRUCKS AND SCARIFIES
CA2122850A1 (en) * 1993-05-06 1994-11-07 Anton R. Bachler Grading apparatus for front mounting to the attachment frame of a drive vehicle

Also Published As

Publication number Publication date
DE29600905U1 (en) 1996-05-15
DE29500818U1 (en) 1995-03-02
DE59506493D1 (en) 1999-09-02
WO1996022425A1 (en) 1996-07-25
CA2210539A1 (en) 1996-07-25
ATE182643T1 (en) 1999-08-15
EP0804650A1 (en) 1997-11-05

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