EP0211380A2 - Véhicule de piste avec dispositif à travailler le sol, réglable en hauteur, en particulier fraiseuse de neige - Google Patents

Véhicule de piste avec dispositif à travailler le sol, réglable en hauteur, en particulier fraiseuse de neige Download PDF

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Publication number
EP0211380A2
EP0211380A2 EP86110439A EP86110439A EP0211380A2 EP 0211380 A2 EP0211380 A2 EP 0211380A2 EP 86110439 A EP86110439 A EP 86110439A EP 86110439 A EP86110439 A EP 86110439A EP 0211380 A2 EP0211380 A2 EP 0211380A2
Authority
EP
European Patent Office
Prior art keywords
snow
smoothing device
attached
snow groomer
slope
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.)
Granted
Application number
EP86110439A
Other languages
German (de)
English (en)
Other versions
EP0211380A3 (en
EP0211380B1 (fr
Inventor
Walter Haug
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.)
Karl Kaessbohrer Fahrzeugwerke GmbH
Original Assignee
Karl Kaessbohrer Fahrzeugwerke GmbH
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 Karl Kaessbohrer Fahrzeugwerke GmbH filed Critical Karl Kaessbohrer Fahrzeugwerke GmbH
Priority to AT86110439T priority Critical patent/ATE58930T1/de
Publication of EP0211380A2 publication Critical patent/EP0211380A2/fr
Publication of EP0211380A3 publication Critical patent/EP0211380A3/de
Application granted granted Critical
Publication of EP0211380B1 publication Critical patent/EP0211380B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 innovation relates to a snow groomer with a smoothing device attached to the rear of a cross member, directed towards the ground and at least partially compliant.
  • snow groomers with snow blowers are known several times from practice.
  • the smoothing device in such snow groomers simply consists of a tab-shaped apron attached to the cross member located behind the snow groomer or behind the milling machine.
  • Snow groomers provided with such aprons have the disadvantage that the snow loosened by the ramps of the snow groomer or by the tiller is only insufficiently made possible. This disadvantage is particularly evident when the snow to be milled is relatively hard. In this case, the apron can hardly resist the crushed snow, so that larger, mostly hard snow chunks remain on the slopes, which protrude from the snow level.
  • the smoothing device has a front cross section triangular, rigid part fastened to the cross member along an upper side of the triangle, the second triangular side of which, in the direction of travel, is designed as a rigid compression surface facing the slope and rearward from the cross member and is connected at its rear end to a plate-shaped, resilient part, wherein the resilient part extends approximately parallel to the second side of the triangle in the unloaded state and approximately horizontally in the loaded state, while the third side of the triangle is formed as a support wall extending from the rear end of the second side of the triangle to the cross member.
  • the area of application of the snow groomer is expanded considerably.
  • the stiff part with a triangular cross section is lowered onto the snow surface. This part opposes the chopped up snow, which is usually even harder snow chunks, and its oblique front triangular side edge causes the loosened snow to be slightly compressed again, with the uncrushed chunks of snow being pressed into the snow cover. In this way, a busy slope can be loosened and smoothed sufficiently.
  • the front second triangle side absorbs the tensile forces and the rear third triangle side the compressive forces.
  • the relatively stiff part can stand out from the snow cover, while the plate-like, more flexible part articulated at the rear end of the triangular part now rests on the snow cover and the smoothing of the milled part Snow causes.
  • the inclined front triangle side of the rigid part now has a double function, since it now does not rest on the snow cover but ensures that the snow thrown up by the snow blower is distributed evenly over the width of the snow blower. Thanks to the flexible part, good adaptation to uneven terrain is achieved.
  • a rigid horizontal web is attached between the rigid part and the flexible part of the smoothing device. It advantageously has the effect that the plate-like resilient part is not bent upwards by the snow, but also slides horizontally over the smoothed snow cover and thus supports the smoothing process.
  • a plurality of vertical reinforcing ribs arranged parallel to one another and extending in the direction of travel are fastened on the surface of the flexible part facing away from the slope.
  • the desired flexibility of the plate-shaped part of the smoothing device can be determined in a simple manner.
  • the reinforcing ribs can be connected to the third triangular side of the rigid part. be that.
  • the reinforcing ribs are designed to decrease in height towards the rear end of the resilient part. It can easily be achieved that the resilience of the plate-shaped part increases continuously towards the rear end.
  • At least one transverse row of bead-shaped ribs extending in the direction of travel is attached. These ribs press smaller chunks of snow into the snow cover and thus improve the surface quality of the groomed slope.
  • a first transverse row of ribs is attached to the underside of the web and extends to the second front triangular side edge of the rigid part. In this way, these ribs can smash even larger, harder snow chunks during the smoothing process.
  • a further transverse row of ribs can advantageously be attached on the side of the flexible part of the smoothing device facing the slope.
  • these ribs increase the weight of the plate-like, flexible part of the smoothing device and thus ensure that this part adapts better to the slope conditions.
  • the cross member is designed as a box profile parallelogram-like in cross section, the parallelogram side facing the slope being approximately horizontal and the parallelogram front in the direction of travel for transverse distribution of the snow opposite to the direction of travel opposite to the slope.
  • the angle of inclination of the front parallelogram side can be steeper than the angle of inclination of the front, second triangle side of the rigid part of the smoothing device.
  • a simple replacement and a secure fastening of the smoothing device are achieved in that grooves for fastening the smoothing device are attached transversely to the direction of travel on the parallelogram side of the box section facing the slope, the first triangular side of the rigid part of the smoothing device being fastened with projections into the grooves .
  • the smoothing device is advantageously formed in one piece from plastic.
  • a snow blower device 2 is attached to the rear of a snow groomer 1, which is not shown in more detail, in height.
  • the snow blower 2 comprises a frame 3 which has a cross member 4 at its rear end. In the direction of travel A in front of the cross member 4, the actual snow blower 5 is fastened to the cross member 4 on the frame 3 by means of a support 6 pointing downward.
  • the carrier 6 also contains the drive for the snow blower 5.
  • a smoothing device 7 is attached to the lower end of the cross member 4.
  • the cross member 4 is designed as a box profile in the form of a parallelogram in cross section and extends over the entire width of the snow blower device 2.
  • the subsequent smoothing device 7 with projections 14 and 15 is inserted into these grooves.
  • the smoothing device 7 itself has a front stiff part 16 with a triangular cross section.
  • the rigid part 16 is fastened to the cross member 4 with its upper triangular side, more precisely with the two projections 14 and 15 delimiting the upper triangular side.
  • the front triangle side 17 of the rigid part 16 seen in the direction of travel is directed from the front parallelogram side 8 of the cross member 4 towards the slopes and to the rear, the angle of inclination of the triangle side 17 to the horizontal being flatter than that of the front parallelogram side 8 of the cross member 4 at the rear end of the triangular side 17, a plate-shaped flexible part 18 is attached.
  • the third triangular side edge 19 extends from the projection 15 to the rear end of the second triangular side edge 17. Between the two triangular sides 17 and 19 vertical stiffening ribs 20 are inserted, which are arranged parallel to one another in the direction of travel.
  • reinforcing ribs 21 also extend in the direction of travel and parallel to one another on the upper side of the plate-shaped part 18 to the end thereof. These reinforcing ribs 21 connected to the plate-shaped part decrease in height from the third rear triangular side 19 to the rear end of the plate-shaped part 18 (compare FIGS. 2 and 3).
  • the first transverse row extends from the lower end of the second triangular side 17 of the rigid part 16 to the underside of a horizontal rigid web 26 attached between the rigid part 16 and the flexible part 18 of the smoothing device 7.
  • a second transverse row 23 with bead-shaped ribs 25 is provided on the underside of the flexible part 18 of the smoothing device 7.
  • a third transverse row 24 of ribs 25 is also provided at a distance therefrom, which extends to the rear end of the flexible part 18.
  • the shape of the individual ribs 25 can be seen particularly well in the top view in FIG. 3 and in the sectional view in FIG. 4.
  • the smoothing device 7 In the unloaded state, i.e. H. that is, when the snow milling device 2 is completely lifted out of the snow, the smoothing device 7 assumes the outwardly depending position shown in dashed lines in FIG. 1 and in FIG. 2. In this position, the plate-shaped resilient part 18 is aligned approximately parallel to the front second triangular side 17 of the rigid part 16 of the smoothing device.
  • the snow blower 5 In the case of very soft snow, the snow blower 5 is immersed so far in the snow that all transverse rows 22, 23 and 24 rest on runway B.
  • the rear transverse rows 23 and 24 resiliently rest on the snow and thus adapt to the terrain transversely to the direction of travel.
  • the fairly flexible rearmost transverse row 24 of the ribs 25 enables the milled snow to be finished optimally, even on rough terrain.
  • a distribution space is formed in front of the transverse row 22, which distributes the milled snow evenly.
  • the snow blower is dipped deeper into the snow, so that the first transverse row 22 now rests on the snow with higher pressure. Now the milled snow can already be opposed to a somewhat greater resistance, but there is still a relatively large distribution space in front of the smoothing transverse row 22.
  • the horizontal rigid web 26 also has a particularly advantageous effect which practically provides a distribution channel for the snow in front of the transverse row 23.
  • due to the resilience and the trailing third transverse row 24 of the ribs 25 a good adaptation to the terrain is still possible.
  • the snow blower 5 plunges even further, so that the first transverse row 22 of the ribs 25 brings about a compaction of the milled snow.
  • the distribution room in front of the stiff part 16 provided with the first transverse row 22 has now become smaller, on the other hand, solid snow cover mainly occurs on heavily used slopes, where the snow is already largely evenly distributed, so that it is primarily one Improvement of the firm snow arrives without hard snow lumps sticking out of the slope surface.
  • the smoothing device is made in one piece from polyamide in this embodiment. It is not absolutely necessary to form the smoothing device in one piece over the entire width of the snow milling device 2, it is also possible for the smoothing device to be constructed in several parts transversely to the direction of travel.
  • the third triangular side of the rigid triangular part can also be replaced by other suitable support elements.
  • the third side of the triangle can also be made of a pressure-elastic material, for example, in order to improve the terrain adaptation of the first transverse row 22 in hard snow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Soil Working Implements (AREA)
  • Road Paving Structures (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
EP86110439A 1985-08-07 1986-07-29 Véhicule de piste avec dispositif à travailler le sol, réglable en hauteur, en particulier fraiseuse de neige Expired - Lifetime EP0211380B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110439T ATE58930T1 (de) 1985-08-07 1986-07-29 Pistenfahrzeug mit hoehenverstellbarer bodenbearbeitungs-, insbesondere schneefraesvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8522791U DE8522791U1 (de) 1985-08-07 1985-08-07 Pistenfahrzeug mit höhenverstellbarer Bodenbearbeitungs-, insbesondere Schneefräsvorrichtung
DE8522791U 1985-08-07

Publications (3)

Publication Number Publication Date
EP0211380A2 true EP0211380A2 (fr) 1987-02-25
EP0211380A3 EP0211380A3 (en) 1987-12-09
EP0211380B1 EP0211380B1 (fr) 1990-12-05

Family

ID=6783987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110439A Expired - Lifetime EP0211380B1 (fr) 1985-08-07 1986-07-29 Véhicule de piste avec dispositif à travailler le sol, réglable en hauteur, en particulier fraiseuse de neige

Country Status (7)

Country Link
US (2) US4738037A (fr)
EP (1) EP0211380B1 (fr)
JP (1) JPH0621441B2 (fr)
AT (1) ATE58930T1 (fr)
CA (1) CA1240192A (fr)
DE (2) DE8522791U1 (fr)
YU (1) YU139986A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305628A1 (fr) * 1987-09-03 1989-03-08 Maschinenfabrik Liezen Gesellschaft m.b.H. Dispositif de travail des pistes de ski pour véhicules de piste
US7546700B2 (en) 2006-11-23 2009-06-16 Kaessbohrer Gelaendefahrzeug Ag Piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8522791U1 (de) * 1985-08-07 1985-12-05 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Pistenfahrzeug mit höhenverstellbarer Bodenbearbeitungs-, insbesondere Schneefräsvorrichtung
US4897941A (en) * 1988-08-21 1990-02-06 Logan Manufacturing Company Snow grooming comb
CA2008235C (fr) * 1990-01-22 1999-08-31 Michel Pelletier Machine a travailler la neige, de geometrie variable
US5084992A (en) * 1991-04-22 1992-02-04 Logan Manufacturing Company Snow tiller with compactor pan
US5077919A (en) * 1991-05-13 1992-01-07 Logan Manufacturing Company Snow grooming comb with angularly positioned elongate teeth
US5662256A (en) * 1993-05-25 1997-09-02 Bryan; Ken John Bicycle rack
US5581914A (en) * 1995-11-21 1996-12-10 Lmc Operating Corp. Snow cutting tooth for rotating cutter bar of ski slope tiller
US20060081381A1 (en) * 2004-09-07 2006-04-20 Kassbohrer All Terrain Vehicles, Inc. Material handling apparatus
ITUB20159370A1 (it) * 2015-12-14 2017-06-14 Prinoth Spa Apparato per realizzare una pista da sci di fondo

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3685404A (en) * 1970-07-24 1972-08-22 Thiokol Chemical Corp Multi-way snow grooming apparatus for ski slopes
US3795069A (en) * 1972-07-05 1974-03-05 S Cheney Portable trail grooming device
CH574255A5 (fr) * 1974-08-28 1976-04-15 Baechler Anton R
CH591877A5 (fr) * 1976-04-02 1977-09-30 Kempf & Co Ag
FR2416634A1 (fr) * 1978-02-13 1979-09-07 Crete Guerin Dispositif de garde laterale pour appareil preparateur de sol
IT1134059B (it) * 1979-11-06 1986-07-24 Kempf & Co Ag Dispositivo per la preparazione di piste da sci
DE2946796A1 (de) * 1979-11-20 1981-05-27 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Nachlaufgeraet fuer schneefahrzeuge, insbesondere zur pistenpflege
DE3333941A1 (de) * 1983-09-20 1985-04-04 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Fraese
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305628A1 (fr) * 1987-09-03 1989-03-08 Maschinenfabrik Liezen Gesellschaft m.b.H. Dispositif de travail des pistes de ski pour véhicules de piste
US7546700B2 (en) 2006-11-23 2009-06-16 Kaessbohrer Gelaendefahrzeug Ag Piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle

Also Published As

Publication number Publication date
YU139986A (en) 1988-02-29
EP0211380A3 (en) 1987-12-09
JPS6233911A (ja) 1987-02-13
DE8522791U1 (de) 1985-12-05
CA1240192A (fr) 1988-08-09
EP0211380B1 (fr) 1990-12-05
US4888891A (en) 1989-12-26
DE3675998D1 (de) 1991-01-17
JPH0621441B2 (ja) 1994-03-23
ATE58930T1 (de) 1990-12-15
US4738037A (en) 1988-04-19

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