EP0211380B1 - 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
EP0211380B1
EP0211380B1 EP86110439A EP86110439A EP0211380B1 EP 0211380 B1 EP0211380 B1 EP 0211380B1 EP 86110439 A EP86110439 A EP 86110439A EP 86110439 A EP86110439 A EP 86110439A EP 0211380 B1 EP0211380 B1 EP 0211380B1
Authority
EP
European Patent Office
Prior art keywords
piste
snow
smoothing device
vehicle according
travel
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
Application number
EP86110439A
Other languages
German (de)
English (en)
Other versions
EP0211380A3 (en
EP0211380A2 (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 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 brooches remain on the slopes, which protrude from the snow plain.
  • the smoothing device is provided with a front, cross-sectionally V-shaped, rigid part fastened to the cross member, one of which, in the direction of travel, front V-leg directed from the cross member towards the slopes and rearward as a rigid compression surface is formed and is connected at its rear end to a plate-shaped, resilient part, the resilient part extending approximately parallel to the front V-leg in the unloaded state and approximately horizontally in the loaded state, while the other V-leg as extending from the rear end of the front V-leg to the cross member extending support wall is formed.
  • the area of application of the snow groomer is expanded considerably.
  • the stiff part with a V-shaped cross section is lowered onto the snow surface. This part opposes the chopped snow, which is usually even harder snow chunks, and its oblique front V-leg 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 V-leg absorbs the tensile forces and the rear V-leg absorbs 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 V-shaped part now rests on the snow cover and smooths the milled snow.
  • the inclined front V-leg of the stiff 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 evenly distributed 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 rear V-leg of the rigid part.
  • 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 region of ribs is attached to the underside of the web and extends to the front V-leg 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 resilient plate-shaped part is again divided into two areas, of which the area further forward in the direction of travel is used for smoothing medium-hard snow, while the rear area takes over the smoothing or finishing of soft snow in the event of severe uneven terrain.
  • the ribs extending longitudinally in the direction of travel also result in a high degree of articulation of the plate-like compliant part of the smoothing device transversely to the direction of travel, which results in a particularly good adaptation to the terrain of the smoothing device.
  • 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 the direction of travel obliquely to the slope.
  • the angle of inclination of the front parallelogram side can be steeper than the angle of inclination of the front V-leg of the rigid part of the smoothing device.
  • a simple replacement and a secure attachment of the smoothing device are achieved in that grooves are attached transversely to the direction of travel on the parallelogram side of the box section facing the slope, for fastening the smoothing device, the upper ends of the V-legs of the rigid part of the smoothing device having projections in the Grooves is inserted inserted.
  • 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 with a parallelogram cross section and extends over the entire width of the snow blower device 2.
  • the parallelogram side 8 which is in the direction of travel A and faces the snow blower 5, is inclined downwards towards the runway B against the direction of travel.
  • 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 V-shaped cross section.
  • the rigid part 16 is fastened to the cross member 4 with its upper ends formed as projections 14 and 15.
  • the front V-leg 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 towards the rear, the angle of inclination of the V leg 17 to the horizontal being flatter than that of the front parallelogram side 8 of the cross member 4.
  • a plate-shaped compliant part 18 is attached at the rear end of the V-leg 17, a plate-shaped compliant part 18 is attached.
  • the other V-leg 19 extends from the projection 15 to the rear end of the front V-leg 17. Between the two V-legs 17 and 19 vertical stiffening ribs 20 are inserted parallel to each other in the direction of travel.
  • the first transverse row extends from the lower end of the V-leg 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 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 V-leg 17 of the rigid part 16 of the smoothing device.
  • 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 241 resiliently rest on the snow and thus also 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 optimally finished even in the event of uneven 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.
  • the milled snow can now be subjected to somewhat greater resistance, but there is still a relatively large distribution space in front of the smoothing transverse row 22.
  • 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 small, on the other hand, solid snow cover mainly occurs on heavily used slopes where the snow is already evenly distributed to a large extent, 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 formed in several parts transversely to the rear in the direction of travel.
  • the rear V-leg 19 of the rigid V-shaped part 16 can also be replaced by other suitable support elements. This V-leg 19 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)

Claims (12)

1. Véhicule de piste, comprenant un dispositif de lissage monté à l'arrière sur une traverse, dirigé vers le sol et au moins en partie flexible, caractérisé en ce que le dispositif de lissage (7) est muni d'un élément avant rigide (16) de section transversale en V fixé sur la traverse (4), dont l'une des branches (17) du V et conformée en surface de compactage qui, à partir de la traverse (4), est orientée vers la piste et vers l'arrière et rattachée, à son extrémité du côté arrière, à un élément flexible (18) en forme de plaque, l'élément flexible (18) s'étendant, à l'état non chargé, sensiblement parallèlement à la branche (17) du V et, à l'état chargé, sensiblement horizontalement, tandis que l'autre branche (19) du V est conformée en support qui s'étend de l'extrémité arrière de l'une des branches (17) du V en direction de la traverse (4).
2. Véhicule de piste selon la revendication 1, caractérisé en ce qu'une traverse horizontale rigide (26) est disposée entre l'élément rigide (16) et l'élément flexible (18) du dispositif de lissage (7).
3. Véhicule de piste selon l'une des revendications 1 ou 2, caractérisé en ce que sur la surface de l'élément flexible (18) opposée à la piste (B) sont fixées plusieurs nervures de renforcement verticales (21) disposées parallèlement les unes par rapport aux autres et s'étendant dans le sens de la marche (A).
4. Véhicule de piste selon la revendication 3, caractérisé en ce que les nervures de renforcement (21) sont raccordées à la branche (19) du V de l'élément rigide (16).
5. Véhicule de piste selon l'une des revendications 3 ou 4, caractérisé en ce que les nervures de renforcement (21) sont conformées de façon à ce que leur hauteur diminue en direction de l'extré- mite postérieure de l'élément flexible (18).
6. Véhicule de piste selon l'une des revendications 1 à 5, caractérisé en ce que du côté du dispositif de lissage (7) dirigé vers la piste (B) est disposée au moins une rangée transversale (22, 23, 24) de nervures (25) en forme de bourrelets qui s'étendent longitudinalement dans le sens de la marche (A).
7. Véhicule de piste selon la revendication 6, caractérisé en ce que la première rangée transversale (22) de nervures (25) est disposée à la face inférieure de la traverse (26) et s'étend jusqu'à la branche (17) du V de l'élément rigide (16).
8. Véhicule de piste selon l'une des revendications 6 ou 7, caractérisé en ce que du côté de l'élement flexible (18) du dispositif de lissage (7) dirigé vers la piste (B), est disposée une rangée transversale (23) supplémentaire de nervures (25).
9. Véhicule de piste selon l'une des revendications 6 à 8, caractérisé en ce que du côté de l'élément flexible (18) du dispositif de lissage (7) dirigé vers la piste (B), deux rangées transversales (23, 24) de nervures (25) sont disposées l'une derrière l'autre dans le sens de la marche (A).
10. Véhicule de piste selon l'une des revendications 1 à 9, caractérisé en ce que la traverse (4) présente, en section transversale, un profil de caisson du type parallélogramme, le côté (9) du parallélogramme dirigé vers la piste (B) étant orienté sensiblement horizontalement et le côté (8) du parallélogramme antérieur dans le sens de la marche (A) étant incliné vers la piste (B) dans le sens opposé à la direction de la marche (A) pour la répartition transversale de la neige.
11. Véhicule de piste selon la revendications 10, caractérisé en ce que le côté (9) du parallélogramme du profil en caisson (4) dirigé vers la piste (B) est muni, transversalement à la direction de la marche (A), de rainures (12, 13) pour la fixation du dispositif de lissage (7), les extrémités supérieures des branches (17, 19) du V de l'élément rigide (16) du dispositif de lissage (7) étant fixées par engagement de parties saillantes (14, 15) dans lesdites rainures (12, 13).
12. Véhicule de piste selon l'une des revendications 1 à 11, caractérisé en ce que le dispositif de lissage (7) est réalisé en une seule pièce en matière plastique.
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 EP0211380A2 (fr) 1987-02-25
EP0211380A3 EP0211380A3 (en) 1987-12-09
EP0211380B1 true 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)

Families Citing this family (11)

* 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
ES2018854B3 (es) * 1987-09-03 1991-05-16 Maschf Liezen Ges M B H Aparato para alisar pistas por vehiculos deslizadores
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
DE102006057272B4 (de) 2006-11-23 2011-11-10 Kässbohrer Geländefahrzeug AG Pistenpflegevorrichtung für ein Kraftfahrzeug, insbesondere ein Kettenfahrzeug
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

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
EP0211380A2 (fr) 1987-02-25
CA1240192A (fr) 1988-08-09
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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