EP0964961A1 - Dispositif de damage des pistes - Google Patents

Dispositif de damage des pistes

Info

Publication number
EP0964961A1
EP0964961A1 EP97953693A EP97953693A EP0964961A1 EP 0964961 A1 EP0964961 A1 EP 0964961A1 EP 97953693 A EP97953693 A EP 97953693A EP 97953693 A EP97953693 A EP 97953693A EP 0964961 A1 EP0964961 A1 EP 0964961A1
Authority
EP
European Patent Office
Prior art keywords
flap
grooming device
slope
deflection
milling
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.)
Withdrawn
Application number
EP97953693A
Other languages
German (de)
English (en)
Inventor
Helmut Kanzler
Gerd Friedmann
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 EP0964961A1 publication Critical patent/EP0964961A1/fr
Withdrawn legal-status Critical Current

Links

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 attachment to a vehicle with a device frame for mounting at least one implement, in particular a milling shaft, a smoothing device arranged in the direction of travel at the rear end of the piste grooming device, and a deflection device arranged downstream of the implement and adjustable in the angle of attack relative to the direction of travel.
  • Such a slope maintenance device is known from DE 2 946 796 AI.
  • the known slope grooming device is a follow-up device for a snow vehicle.
  • the follow-up device is detachably mounted on a rear of the snow vehicle by means of a holding frame.
  • a device frame is pivotally connected to the holding frame, on which a milling shaft is rotatably mounted as an implement.
  • a leveling device is arranged as a smoothing device in the direction of travel at the rear end of the device frame.
  • a smoothing board is pivotably mounted between the milling shaft and the leveler as a deflection device.
  • a front end of the smoothing board in the direction of travel can be raised and lowered by means of an adjusting device, as a result of which an angle of attack of the smoothing board can be varied relative to the direction of travel.
  • the corresponding pivot bearing for the smoothing board is arranged near its rear end and is mounted on a bearing block on the device frame.
  • a disadvantage of the known piste grooming device is that the storage of the smoothing board near its rear end, the front end of which is pivoted in the direction of the implement. As a result, the distance between the implement and the smoothing board increases as the angle of attack increases. There is also the possibility that snow or ice is transported from the implement over the smoothing board at a low angle of attack.
  • the present invention is therefore based on the object of improving a piste grooming device of the type mentioned at the outset in such a way that, with a simplified design, improved assignment and cooperation of the implement and the deflection device is possible, and at the same time the functionality of the deflection device is ensured.
  • the deflection device is designed as a substantially at its upper end swinging on the device frame deflector flap, the upper end of which is arranged between the implement and the deflector flap edge of the device frame.
  • the swinging flap at the upper end means that the diverter flap can be easily moved towards or away from the implement.
  • the deflector edge protects the bearing of the deflection flap against soiling and damage from material supplied by the implement and thus ensures the functionality of the deflection device.
  • a non-generic piste grooming device is known in which a flexible membrane is attached to a housing of the milling shaft with a front end.
  • the membrane extends to the rear in the direction of travel and forms a smoothing device in a rear section which can be acted upon from above by a pressing device.
  • the press-on device By swiveling the press-on device, the membrane can bulge upwards, so that an enlarged space is created next to the milling shaft. This room is called the snow chamber.
  • the deflection flap can be mounted in an oscillating manner on a horizontal pendulum axis running transversely to the slope grooming device. As a result, the deflection flap can be pivoted evenly relative to the working device over its entire length in the transverse direction to the piste care device.
  • the deflection flap can be mounted in an oscillating manner essentially at the lower rear end of the milling frame.
  • the deflection flap can complement an impact cladding that at least partially surrounds the milling shaft, or it can also be mounted in an oscillating manner directly at the free lower rear end of the impact cladding. If the deflection flap is arranged in its position pivoted toward the milling shaft, it can, for example, essentially continue the impact cladding with a corresponding curvature in the direction of the surface. In its position pivoted away from the implement, the impact lining is shortened so that there is a greater distance between the end of the impact lining and the ground.
  • the pendulum axis can be rotatably supported at its ends in side panels of the milling frame.
  • the milling shaft can be height-adjustable separately from the deflection flap by means of a corresponding own adjusting device.
  • an elastic support can, for example, be detachably attached to the deflection flap. This is attached to a front side of the deflection flap facing the implement.
  • the deflection flap can be formed from an upper flap section adjacent to the pendulum axis and a lower flap section adjoining this, which sections form an obtuse angle in the direction of the implement lock in.
  • the deflection flap can also be formed from a plurality of sections angled to one another or from a concavely curved flap.
  • the elastic support can protrude downward beyond the lower flap section.
  • the deflection flap itself largely does not come into direct contact with the surface, so that wear is reduced.
  • the protruding support prevents the distance between the deflection flap and the base from being too large.
  • a simple actuating device for adjusting the deflection flap can be formed by an actuating cylinder, the piston of which is motionally connected to the deflection flap.
  • an actuating cylinder can be operated hydraulically or pneumatically.
  • the actuating cylinder can be operated from the driver's position.
  • the adjusting device can be pivotably mounted on the device frame. Depending on the angle of attack of the deflection flap, the actuating device is pivoted relative to the device frame.
  • the deflection flap can have a bearing block on its rear side facing away from the implement, on which the piston of the actuating device is pivotably mounted.
  • a simple mounting of the actuating device is possible in that it is pivotably mounted on a support arm pointing backwards in the direction of travel for the smoothing device.
  • a support arm pointing backwards in the direction of travel for the smoothing device.
  • two such support arms can be provided per milling shaft, which protrude rearward from the corresponding milling frame. At the free ends of the support arms, these are connected to an upper side of the smoothing device, such as a finisher.
  • a pivot pin is detachably connected to the actuating device and protrudes laterally from the latter.
  • the actuating device on the device tion frame or the like can be arranged and pivoted relative to this.
  • the actuating device be mounted above and the deflection flap below the smoothing device and an opening in the smoothing device for connecting the actuating device and deflecting flap is arranged.
  • the piston can for example extend through this opening and be detachably connected to the bearing block on the rear side of the deflection flap.
  • the diverter flap can rest against the smoothing device with its rear side from below in its retraction pitch pivoted in the direction of the smoothing device.
  • a bearing block arranged on the rear side of the deflection flap can protrude upward from the opening in the smoothing device. In this way there is an almost continuous smooth surface on the underside of the smoothing device for leveling the soft snow.
  • the detachable fastening of the smoothing device can be advantageous directly at a rear end of the milling frame, so that separate support arms to be fastened to the milling frame can be dispensed with.
  • the rear end of the milling frame can be designed as an obliquely backward and downward milling frame extension.
  • This extension can or can extend over the entire width of the milling frame for each milling shaft also be formed only in places on the milling frame for each milling shaft.
  • the milling frame extension has a recess on its underside for receiving and releasably fastening a front end of the smoothing device.
  • the recess can be designed as a slot for inserting the front end of the smoothing device, or can be designed as a shoulder-shaped recess on the underside of the milling frame extension downwards and backwards to the smoothing device.
  • a retaining strip which runs essentially transversely to the slope grooming device can be arranged in the recess, to which the front end is attached in a form-fitting manner.
  • a form-fitting attachment can take place, for example, in that the front end of the smoothing device is designed to be complementary to the retaining strip and can be pushed onto it, for example.
  • Such a positive connection can be made by a dovetail connection.
  • a thickness of the front end of the smoothing device is substantially equal to a depth of the recess, so that the recess is essentially filled by the front end of the smoothing device.
  • an opening can be formed in the milling frame extension through which the piston of the adjusting device can be passed and the bearing block at least partially the deflection flap is received in its retracted position.
  • the number of openings is equal to the number of actuating devices for the deflection flap.
  • the opening can also be so large that a cylinder of the actuating device which serves to guide the piston is also at least partially arranged in the opening and a certain pivoting of the actuating device is possible relative to the opening.
  • the actuating device can be pivotably mounted on a bearing block protruding from the milling frame extension.
  • the deflection flap can be formed from a hollow profile strip.
  • Such a hollow profile strip advantageously has a cross section with an essentially U-shaped base, the U legs of which merge into one another to form a sword-shaped end section.
  • Such hollow profile strips are also used, for example, as chain stays for snow vehicles, at the rear of which the piste grooming device according to the invention can be detachably mounted as a follow-up device.
  • the impact cladding can have at its rear lower end, as a deflector edge, an end edge projecting downwards towards the runway, which at least partially covers the pendulum axis with respect to the milling shaft .
  • Figure 1 is a sectional side view of a slope grooming device according to the invention.
  • FIG. 2 shows a rear view of a deflection flap with adjusting device according to FIG. 1;
  • Fig. 3 is an enlarged view of a storage for the
  • Fig. 4 is an enlarged view of a section along the line IV-IV of Fig. 1, and
  • FIG. 5 shows a sectional side view of the piste grooming device according to the invention according to FIG. 1 with a further exemplary embodiment of a deflection flap and a fastening of a smoothing device.
  • FIG. 1 shows a side and partially sectioned view of a piste grooming device 1 according to the invention.
  • a piste grooming device is known per se and comprises at least one device frame 2 made of milling frame 13 and support arms 26 projecting therefrom to the rear.
  • Milling frame 13 has a milling shaft 13 rotatably mounted on the lateral ends as working tool 3 with corresponding radially projecting milling tools 32.
  • the support arm or arms 26 are essentially L-shaped, with a longer L-leg projecting from the milling frame 13 to the rear in approximately the opposite direction to the direction of travel 4.
  • the shorter L-leg is inclined backwards and downwards and is with its free end on a top of a finisher Smoothing device 6 releasably attached.
  • the orientation of the support arm 26 to the finisher 6 can be varied through holes 35 in the support arm.
  • the milling frame 13 can be formed on its inside facing the milling shaft 31 with an impact cladding 36 which extends to its rear lower end 12.
  • side panels 17 can also be attached, which laterally cover an intermediate space between the milling shaft 31 and the finisher 6.
  • a deflection flap 10 is suspended as a deflection device 8 at its upper end 9 between the milling shaft 31 as the implement 3 and the smoothing device 6.
  • a horizontal pendulum axis 11 running transversely to the piste grooming device 1 is arranged adjacent to the lower rear end 12 of the milling frame 13.
  • an actuating device 21 that is connected to the deflection flap 10 the deflection flap 10 can be pivoted about a pendulum axis 11 between a front position 30 and a retraction pitch 29.
  • the deflection flap 10 In the front position 30, the deflection flap 10 essentially continues the curvature of the impact cladding 36 downward.
  • the deflection flap 10 has on its front side facing the milling shaft 31 an elastic support 14, the lower end 37 of which projects downward beyond the deflection flap 10.
  • Deflection flap 10 is formed by an upper flap section 18 mounted directly on the pendulum axis 11, see FIG. 2, and a lower flap section 19 adjoining it downward, see FIG. 2.
  • the two flap sections form an obtuse angle 20 in the direction of the milling shaft 31.
  • the elastic pad 14 has a corresponding angle, since it runs parallel to the individual flap sections and bears against them.
  • the elastic pad 14 can be connected to the deflection flap 10 by rivets, screws or the like.
  • the reversing flap 10 rests on the finisher 6 from below with its rear side.
  • a bearing block 25 arranged on the rear side of the deflection flap 10 is inserted through an opening 28 in the finisher 6. This opening 28 is arranged adjacent to the end 37 of the finisher 6 fastened to the rear lower end 12 of the milling frame 13.
  • a piston 23 of the actuating device 21 designed as a piston-cylinder unit is passed through the opening 28.
  • the corresponding cylinder 22 is pivotally mounted on a support arm 26 in order to be able to follow the variation of an angle of attack 7 of the deflection flap 10.
  • FIG. 2 shows a rear view of the deflection device 8 from FIG. 1 alone.
  • the same reference numerals designate the same parts and are also mentioned in part.
  • the bearing block 25 On the rear side 24 of the deflection flap 10, the bearing block 25 is arranged, on which the piston 23 is pivotably mounted by means of a transverse axis 33.
  • the pivot pin 27 projects laterally from the cylinder 22, see also FIG. 1.
  • the corresponding support arm 26, on which the actuating device 21 is pivotably mounted, is not shown.
  • the pendulum axis 11 extends essentially over the entire length of the deflection flap 10, its ends 15, 16 being rotatably mounted on the milling frame 13 or on the side panels 17.
  • FIG. 3 shows an enlarged section along the line III-III from FIG. 1.
  • the pivot pin 27 is laterally detachably attached to the actuating cylinder 22 of the actuating device 21 by means of two plates.
  • a plate lying directly against the actuating cylinder 22 is welded to it, for example.
  • a plate carrying the pivot pin 27 can be connected to the welded plate by screws.
  • a support arm 26 is shown in dash-dotted lines and is penetrated by the pivot pin 27. Washers 38 are arranged on the ends of the pivot pin 27 projecting from the support arm 26 and a nut is screwed onto the free end of the pivot pin 27.
  • FIG. 4 shows a section along the line IV-IV from FIG. 1.
  • the bearing block 25 is formed by two bearing flanges projecting from the rear side 24, see FIG. 2, of the deflection flap 10, between which a transverse axis 33 extends. This protrudes with its ends over the bearing flanges and is secured there against a displacement in the axial direction by means of split pins 34. Between the two bearing flanges, the piston 23 of the actuating device 21 is pivotably mounted on the transverse axis 33.
  • FIG. 5 shows a sectional side view of a piste grooming device corresponding to FIG. 1 with another exemplary embodiment for a deflection flap and its associated actuating device and for fastening a smoothing device.
  • the same parts are provided with the same reference numerals and are only mentioned in part.
  • the piste grooming device 1 according to FIG. 5 differs from the corresponding piste grooming device according to FIG. 1 in particular by a differently designed deflection device 8 and a different type of fastening of the smoothing device 6.
  • the device frame 2 comprises at least the milling frame 13 with the rear milling frame extension 26a and a covering 46 which covers the milling frame 13 opposite the milling shaft 31 upwards.
  • the cladding 46 is for realization a smooth and edge-free surface curved and releasably attached to the milling frame 13 at its ends. One end is screwed onto the milling frame 13 as a fastening end 47.
  • the exemplary embodiment according to FIG. 5 has the rear milling frame extension 26a, which extends obliquely backwards and downwards.
  • a recess 43 is formed at the rear end 5 of the milling frame 13 in the milling frame extension 26a and is open at the bottom and rear. This serves to arrange the front end 37 of the smoothing device 6.
  • a holding strip 45 is arranged in the recess 43 and runs transversely to the slope grooming device 1.
  • the retaining strip 45 is essentially U-shaped in cross-section, ends of the U-legs being bent outwards.
  • the front end 37 of the smoothing device 6 can be pushed onto the holding strip 45, the bent ends of the corresponding U-legs being encompassed in a form-fitting manner.
  • the thickness of the front end 37 is just large enough to correspond to the depth of the recess 43, as a result of which the recess is completely filled by the front end 37 of the smoothing device 6, which is pushed onto the retaining strip 45.
  • the impact cladding 36 merges flush with the underside of the smoothing device 6 at a front, lower edge 44 of the recess 43.
  • the actuating device 41 is a piston-cylinder unit with cylinder 22 and piston 23.
  • the actuating device 21 is pivotably mounted on a bearing block 40 on a pivot pin 27.
  • the bearing block 40 protrudes upward from the milling frame extension 26a.
  • an opening 41 is formed in the milling frame extension 26a, through which at least the piston 23 can be passed and in particular the bearing block 25 can be arranged for connecting the deflection flap 10 and the piston 23 in the retracted position 29 of the deflection flap 10.
  • the cylinder 22 can be partially arranged in the opening 41.
  • the opening 41 in the direction of travel 4 is at least so large that the actuating device 21 for adjusting the deflection flap 10 between the front position 30 and the retracted position 29 can be pivoted about bearing bolts 27.
  • the deflection flap 10 is formed by a hollow profile strip. This has a cross-section with an essentially U-shaped base, the corresponding U-legs merging to form a sword-shaped end section.
  • the mounting on the pendulum axis 11 takes place via the base, ie the upper end 9 of the deflection flap 10.
  • the sword-shaped end section can be pivoted along the angle of attack 7 by means of the adjusting device 21.
  • a projecting lower edge 42 of the impact cladding 36 is arranged as a deflector edge, which at least partially covers the pendulum axis relative to the milling shaft 31, see also FIG. 1.
  • the deflection flap 10 Through the impact cladding 36, its projecting lower edge 42, the deflection flap 10 arranged in the retracted position 29 and the adjoining underside of the smoothing device 6, a lead-through and discharge channel for frozen snow and ice floes crushed by the piste care device 1 or for redistributed by the milling shaft Snow formed. In its front position, the deflection flap 10 holds back the snow and ice floes that may have been roughly crushed up to that point in the feed area of the milling shaft with the corresponding milling tools 32, so that overall a fine crushing or crumbling of snow and / or ice floes for optimal slope maintenance is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

L'invention concerne un dispositif de damage des pistes (1) se montant sur un véhicule et comportant un bâti (2) pour supporter aumoins un outil (3), notamment un arbre fraiseur, un dispositif deplanage (6) situé dans le sens de marche à l'extrémité arrière du dispositif de damage des pistes (1), et un système de déflection (8) situé en aval de l'outil (3) et dont l'angle est réglable par rapport au sens de marche. Dans le but de permettre une coordination et une coopération améliorées entre l'outil (3) et le système de déflection (8) avec une conception simplifiée, et en même temps de garantir l'aptitude au fonctionnement dudit système de déflection (8), celui-ci se présente sous la forme d'une bavette déflectrice (10) montée sensiblement oscillante à son extrémité supérieure (9). Un bord déflecteur (42) du bâti (2) est situé en amont de l'extrémité supérieure (9) entre l'outil (3) et la bavette déflectrice (10).
EP97953693A 1997-02-28 1997-11-24 Dispositif de damage des pistes Withdrawn EP0964961A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29703678U DE29703678U1 (de) 1997-02-28 1997-02-28 Pistenpflegevorrichtung
DE29703678U 1997-02-28
PCT/EP1997/006549 WO1998038388A1 (fr) 1997-02-28 1997-11-24 Dispositif de damage des pistes

Publications (1)

Publication Number Publication Date
EP0964961A1 true EP0964961A1 (fr) 1999-12-22

Family

ID=8036755

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97953693A Withdrawn EP0964961A1 (fr) 1997-02-28 1997-11-24 Dispositif de damage des pistes

Country Status (3)

Country Link
EP (1) EP0964961A1 (fr)
DE (1) DE29703678U1 (fr)
WO (1) WO1998038388A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004059821B4 (de) * 2004-12-03 2010-11-25 Kässbohrer Geländefahrzeug AG Pistenpflegevorrichtung zum Anbau an ein Fahrzeug
DE102006057272B4 (de) 2006-11-23 2011-11-10 Kässbohrer Geländefahrzeug AG Pistenpflegevorrichtung für ein Kraftfahrzeug, insbesondere ein Kettenfahrzeug
DE102008016915B4 (de) * 2008-03-26 2010-04-01 Kässbohrer Geländefahrzeug AG Fräseinrichtung zur Bearbeitung einer Schneepistenoberfläche
IT201800003000A1 (it) * 2018-02-23 2019-08-23 Prinoth Spa Fresa da neve e relativo metodo di regolazione

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT312034B (de) * 1971-01-21 1973-12-10 Koenig Maschinen E Nachlaufgerät für Pistenfahrzeuge zum Präparieren von Skipisten
DE2946796A1 (de) * 1979-11-20 1981-05-27 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Nachlaufgeraet fuer schneefahrzeuge, insbesondere zur pistenpflege
CA2008235C (fr) * 1990-01-22 1999-08-31 Michel Pelletier Machine a travailler la neige, de geometrie variable

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9838388A1 *

Also Published As

Publication number Publication date
DE29703678U1 (de) 1998-06-25
WO1998038388A1 (fr) 1998-09-03

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