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EP0226711B1 - Fraiseuse de neige - Google Patents

Fraiseuse de neige Download PDF

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Publication number
EP0226711B1
EP0226711B1 EP86112123A EP86112123A EP0226711B1 EP 0226711 B1 EP0226711 B1 EP 0226711B1 EP 86112123 A EP86112123 A EP 86112123A EP 86112123 A EP86112123 A EP 86112123A EP 0226711 B1 EP0226711 B1 EP 0226711B1
Authority
EP
European Patent Office
Prior art keywords
snow
frame
roller according
compacting
ribs
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
EP86112123A
Other languages
German (de)
English (en)
Other versions
EP0226711A3 (en
EP0226711A2 (fr
Inventor
Walter Haug Obering
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 AT86112123T priority Critical patent/ATE55438T1/de
Publication of EP0226711A2 publication Critical patent/EP0226711A2/fr
Publication of EP0226711A3 publication Critical patent/EP0226711A3/de
Application granted granted Critical
Publication of EP0226711B1 publication Critical patent/EP0226711B1/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 present innovation relates to a snow blower for rear attachment to a snow groomer, with a milling shaft and a milling frame which is at least triangular in cross section and extends across the width of the snow blower, and has side plates with bearings for the milling shaft screwed onto its lateral ends.
  • Such a snow blower is already known from DE-U 85 28 096, which goes back to the applicant.
  • the milling frame shown there has a parallelogram-like cross-section, so that two milling-frame surfaces in cross-section form two sides of a triangular shape.
  • the milling frame is designed as a central frame, in the middle of which a gear is attached which drives two cutter shafts connected to the side of the gear.
  • the milling shafts are held in side bearings with their ends facing away from the gearbox.
  • This object is achieved in that at the lateral ends of the milling frame in a cross-sectional plane over two frame surfaces projecting and V-shaped mutually arranged webs are attached and in that two V-shaped mutually arranged hook strips are attached to the side of the side plate facing the milling frame, which engage behind the webs of the milling frame in the attached state of the side plate, the hook strips of the side plate forming a form-fitting clamp closure together with a retaining screw engaging on the milling frame.
  • the milling frame is designed as a hollow profile, to direct the webs inwards so that the hook strips of the side shields grip the webs in the interior of the milling frame. It is important in any case that the two hook strips have approximately the same angle as the two webs, although the webs, like the hook strips, can also be formed by a web or a hook strip, respectively, which are bent in a V-shape.
  • the hook strips grip the webs from the outside when the side plate is attached and the screw is attached to the milling frame at a distance from the milling frame surfaces.
  • a side plate is further facilitated by the fact that an insert pocket for the side plate opening towards the V-shaped webs is attached to the side of the milling frame, the retaining screw engaging through the insert pocket on the side plate and being designed as a tension screw.
  • the retaining screw engaging through the insert pocket on the side plate and being designed as a tension screw.
  • the insertion pocket is located on the side of the milling frame opposite the webs, a particularly effective locking of the side plate is also achieved.
  • the webs on the milling frame can be formed in a particularly simple manner in that a likewise triangular end cover, which projects beyond the cross-sectional area of the milling frame, is attached to the side of the milling frame.
  • a cover also has the advantage that it keeps a milling frame designed as a hollow profile closed even when the side plates are removed.
  • Particularly good guidance when pushing on a side plate can be achieved in that at the end of the side plate facing the insertion pocket a corresponding insertion flap is bent, to which a nut is attached.
  • the accessibility of the retaining screws of the side shields is improved in that the milling frame is designed as an impact body and that its lateral edges are designed to rise from the center of the milling frame.
  • the milling frame is in a bistable position, which can be used to place the milling frame for removing the side shields in such a way that its side end, which is being worked on, is directed upwards away from the ground.
  • an impact body contributes to better snow distribution and in particular prevents the formation of edge walls at the lateral edges of the snow blower.
  • the milling frame has a milling frame surface facing the slope, at the edges of two fastening grooves are incorporated to accommodate a smoothing device.
  • the smoothing device can be replaced quickly and easily by simply being inserted into the fastening grooves.
  • Lateral securing of the smoothing device can be achieved in that the attached side shields each cover at least one of the fastening grooves on the lateral end of the milling frame from the outside. In this way, a separate locking for the smoothing device can be dispensed with.
  • the smoothing device is provided with a front part which is triangular in cross section and fastened to the milling frame along a first side of the triangle, the second triangular side of which is formed from the milling frame in the direction of the slopes and towards the rear as a rigid compression surface and at its rear end with one plate-shaped, resilient part is connected, the resilient part extends approximately parallel to the second triangle side in the unloaded state and approximately horizontally in the loaded state, while a third triangle side is designed as a support extending from the rear end of the second triangle side to the cross member.
  • At least one transverse row of bead-shaped ribs extending in the direction of travel is attached to the side of the smoothing device facing the slope.
  • a first transverse row of ribs is attached to the underside of the web and extends to the second front triangle side of the rigid part.
  • Such a smoothing device is known from DE-GM 85 22 791, which also goes back to the applicant.
  • the ease of maintenance of the snow blower can be further increased in that the first transverse row of ribs is made of a hard, wear-resistant material.
  • the transverse rows behind in the direction of travel can be made of soft material.
  • the smoothing device preferably consists of polyurethane.
  • the wear resistance of the first transverse row can be increased simply by pouring corundum particles into the ribs of the first transverse row. Despite this measure, the smoothing device is hardly heavier, so that the replacement of the smoothing device is not made more difficult.
  • the ribs of the first transverse row towards the slope are covered with spring steel sheet.
  • This sheet can be kept relatively thin, since the ribs of the first transverse row give the sheet a certain dimensional stability, so that the sheet can be applied as a wear-reducing layer only.
  • the spring steel sheet can on the one hand be screwed onto the smoothing device, and on the other hand the spring steel sheet can also be inserted together with the smoothing device into the front fastening groove of the milling frame.
  • the spring steel sheet alone forms the second, slope and rear triangular side of the smoothing device and is connected at its rear end to the plate-shaped, flexible part.
  • This configuration of the smoothing device saves material, which reduces the weight of the smoothing device and thus improves the handling of the snow blower when the smoothing device is replaced.
  • the ribs of the first transverse row can also be designed as metal cams equipped with fastening anchors, which are cast into the smoothing device with their fastening anchors.
  • the ribs are designed in such a way that a more pointed part points in the direction of travel and the subsequent part widens against the direction of travel, an additional transverse compression of the snow is brought about in addition to the reduction in wear, which leads to a particularly well prepared slope.
  • the snow blower 1 comprises a support frame 2 for rear attachment to a snow groomer (not shown) and an impact body 3 fastened to the support frame 2 and extending over the entire width of the snow blower.
  • the support frame 2 is fork-shaped and screwed symmetrically to the center of the snow blower 1 with the impact body 3.
  • the impact body 3 itself is designed as a central milling frame, on which the following components are attached in a modular manner.
  • a gear 4 is screwed, which drives two milling shafts 7 and 8 extending on both sides from the gear 4 to the lateral ends 5 and 6 of the milling frame 3.
  • the outer Ren ends 9 and 10 of the milling shafts 7 and 8 are held in side bearings 11 and 12 attached to the lateral ends 5 and 6 of the milling frame 3.
  • the milling frame 3 consists of a parallelogram-shaped hollow body which can be produced, for example, from aluminum by extrusion.
  • a lower parallelogram side 13 of the milling frame 3 faces the slope and is aligned approximately parallel to it.
  • the parallelogram side 13 is followed by a second parallelogram side 14, which rises obliquely upwards.
  • This parallelogram side is designed as an impact surface and with a wear-reducing plastic layer, for. B. polyester powder coating, which is applied to the parallelogram side 14 in the embodiment shown here.
  • fastening grooves 17 and 18 are let in, which extend over the entire width of the milling frame 3.
  • a smoothing device 19 is fastened in the fastening grooves 17 and 18 and is inserted with its projections 20 into the fastening grooves 17 and 18.
  • the projections 20 are engaged behind by the fastening grooves 17 and 18, so that a further fastening of the smoothing device is not necessary.
  • the smoothing device 19 extends over the entire width of the milling cutter and is made of plastic. In the front area, it has a part 21 which is approximately triangular in shape and stiffened, and which is followed at the rear by a plate-shaped, more flexible part 22.
  • the front triangle side 29 of the rigid part 21, viewed in the direction of travel, is directed from the front parallelogram side 14 of the milling frame 3 towards the slopes and to the rear, the angle of inclination of the triangle side 29 to the horizontal being flatter than that of the front parallelogram side 14 of the milling frame 3 at the rear end of the triangular side 29, the plate-like flexible part 22 is fastened.
  • Another triangle side 30 extends from the front projection 20 to the rear end of the front triangle side 29. Between the two triangle sides 29 and 30 vertical stiffening ribs 31 are used, which are arranged parallel to each other in the direction of travel.
  • From the rear triangle side 30 also extend in the direction of travel and parallel to each other reinforcing ribs 32 on the top of the plate-shaped part 22 rearward to the end. These reinforcing ribs 32 connected to the plate-shaped part decrease in height from the rear triangular side 30 to the rear end of the plate-shaped part 22.
  • the first transverse row extends from the lower end of the front triangular side 29 of the rigid part 21 to the underside of a horizontal rigid web 36 attached between the rigid part 21 and the flexible part 22 of the smoothing device 19.
  • a second transverse row 34 with bead-shaped ribs 23 is provided on the underside of the flexible part 23 of the smoothing device 19.
  • a third transverse row 35 of ribs 23, which extends to the rear end of the flexible part 22, is also provided at a distance therefrom.
  • a fastening groove 26 is also incorporated in the region of the front edge 25, which extends over the entire width of the milling frame 3.
  • a cover profile made of a resilient plastic is attached, which extends in the extension of the parallelogram 24 seen in the direction of travel to the front and ends in an arc directed towards the slopes.
  • This cover profile like the smoothing device, can also be inserted into the fastening groove 26, which engages behind a projection 28 of the cover profile 27, so that a further fastening of the cover profile 27 is not necessary.
  • Two of the cover profiles 27 are provided side by side, one each extending from the gear unit to the lateral ends 5 and 6 of the milling frame 3.
  • the milling shafts 7 and 8 are inserted into the gear 4 on the one hand and into the side bearings 11 and 12 screwed to the lateral ends 5 and 6 of the milling frame 3 on the other hand.
  • FIG. 1 the components of the snow blower 1 are shown individually in plan view; they can also be seen in a side view. It can be seen particularly well that the snow blower 1 is constructed from only a very few parts which are very easy to replace. All wearing parts are attached to the central milling frame 3, so that depending on the wear of the snow blower, either the entire milling frame 3 is unscrewed from the supporting frame 2 and replaced by a new one, or only individual wearing parts are replaced.
  • the side bearings 11 and 12 are each fastened to a side plate 37.
  • a side plate 37 For the sake of simplicity, only the left side plate 37 is described here.
  • the right side plate is identical to the left side plate except that it is mirror-inverted.
  • hook strips 39 and 40 which are L-shaped in cross section and are L-shaped are attached.
  • the angle enclosed by the hook strips 39 and 40 is approximately equal to the angle formed by the upper parallelogram side 24 and the front parallelogram side 14 of the milling frame 3 is included.
  • the side plate 37 is adapted in this area approximately to the cross-sectional area of the milling frame 3. at the end opposite the two hook strips 39 and 40, the side plate 37 is bent towards the side facing away from the hook strips in the form of a tab 41.
  • a nut 42 is welded to the back of the tab 41. The axial direction of the nut 42 lies approximately in the bisector of the angle enclosed by the hook strips 39 and 40, more precisely on the diagonal of a parallelogram in this exemplary embodiment.
  • an end cover 43 is welded to the lateral ends 5 and 6 of the milling frame 3 and projects beyond the cross-sectional area of the milling frame to the outside. To put it more precisely, the end cover 43 projects beyond the milling frame 3 on its parallelogram side 24 and the front parallelogram side 14. On the other parallelogram sides, the end cover 43 does not project beyond the milling frame 3; on the underside of the parallelogram there are even recesses through which the fastening grooves 17 and 18 are attached the front and rear edges 15 and 16 remain accessible.
  • the protruding end cover 43 forms on the upper side 24 and the front parallelogram side 14 of the milling frame 3 webs 44 and 45.
  • the thickness of the two webs 44 and 45 is selected in accordance with the recesses in the L-profile of the hook strips 39 and 40 on the side plate 37. Contrary to the embodiment shown here, the webs and the hook strips do not have to be continuous, but can also be interrupted piece by piece.
  • an insertion pocket 46 which opens towards the upper front edge 25 is welded in the area of the rear edge 16 of the milling frame 3.
  • the insertion pocket 46 has a pocket base 47 and two flanks 48 and 49 protruding therefrom and running parallel to the adjacent parallelogram sides.
  • the insertion pocket 46 is closed off by a wall piece 50 on the side facing away from the milling frame 3.
  • An opening is provided in the pocket base 47, through which a retaining screw 51 extends.
  • the hook bars 39 and 40 engage behind the end cover 43 on its webs 44 and 45 when the side slider 37 is in the installed state of the pocket base 47 which extends through the holding screw 51, the nut 42 of the side plate 37 engages.
  • the milling frame 3 shown in FIG. 3 can be seen again in FIG. 5, but in a front view.
  • the milling frame 3 has a frame drop in such a way that the milling frame 3 is bent in the middle, while its lateral ends 5 and 6 are bent upwards by an amount a relative to the center of the frame.
  • Such a frame detonation can be produced in a hollow profile in a simple manner in that when extruding one side, here the side 24, is cooled faster than the other side, here the side 13.
  • FIGS. 6 to 8 show a further embodiment of the smoothing device 19, the ribs 23, as can be seen from the bottom view of FIG. 7, have a teardrop shape. All ribs 23 have in common that the drop shape tapers in the direction of travel, so that a pointed part 52 points in the direction of travel, while a wider part 53 adjoins the pointed part 52 against the direction of travel. Just like the ribs of the smoothing device 19 shown in FIG. 2, the drop-shaped ribs 23 also have a cam shape in cross section (compare FIG. 8).
  • the ribs 23 of the first transverse row 33 extend with their pointed part 52 over the entire front triangular side 29 of the rigid part 21 of the smoothing device 19.
  • the pointed part 52 ends at the front only below the front projection 20.
  • the relatively long extending pointed parts 52 of the front cams widen in the opposite direction so that the space remaining between the ribs 23 narrows.
  • the ribs 23 of the front transverse row 33 are made of wear-resistant material. While the entire smoothing device 19 can consist of polyurethane, the wear resistance of the ribs 23 of the first transverse row 33 can be achieved by adding corundum particles to the polyurethane there.
  • FIG. 9 Another possibility of the wear-resistant design of the ribs 23 of the front transverse row 33 is shown in FIG. 9.
  • the ribs 23 of the first transverse row 33 are made of a metal or a thermoset and are each with 4 fastening anchors 54 in the front triangular side 29 and the rigid web 36 poured the smoothing device 19.
  • FIG. 10 A further possibility of forming wear-resistant front ribs 23 is shown in FIG. 10.
  • the ribs 23 of the front transverse row 33 are covered with a spring steel plate 55.
  • the spring steel sheet 55 projects together with the front projection 20 into the front fastening groove 17 and becomes. held there positively by the front projection 20 and the fastening groove.
  • the spring steel sheet is screwed to the smoothing device 19 on the rigid web 36.
  • the spring steel sheet 55 can also be screwed in the area of the front triangle side 29 below the front projection 20. In this case it can be disregarded that the spring steel sheet 55 projects together with the front projection 20 into the fastening groove 17.
  • FIG. 11 A final example of the formation of wear-resistant front ribs 23 is shown in FIG. 11 poses.
  • a sliding plate 56 forms the front triangular side 29 of the rigid part 21.
  • the sliding plate 56 is wound in the front area to form a kind of clamping sleeve 57 which can be inserted into the front fastening groove 17 and which is held in the groove due to its inherent tension. Otherwise, the shape of the sliding plate 56 corresponds to that of the front triangular side 29 in the other exemplary embodiments.
  • the connection between the sliding plate 56 and the rest of the smoothing device 19 is accomplished by screwing in the area of the rigid web 36.
  • the remaining part of the smoothing device 19 is made of polyurethane, as in the other exemplary embodiments.
  • the assembly of the snow blower 1 is started first. First, the smoothing device 19 is pushed with its projections 20 into the fastening grooves 17 and 18 of the milling frame 3 until they are flush at the lateral ends 5 and 6 of the milling frame 3. Then you insert the milling shafts 7 and 8 in the gear 4. Then the side shields 37 are plugged with their side bearings 11 and 12 onto the outer ends 9 and 10 of the milling shafts 7 and 8 and pushed with their hook strips 39 and 40 over the webs 44 and 45 of an end cover 43 of the milling frame 3. The side plate 37 is pushed until the tab 41 engages with the nut 42 in the insertion pocket 46 so far that the retaining screw 51 can engage in the nut 42.
  • the snow blower 1 is disassembled in the reverse order.
  • the snow shredded by the milling shafts 7 and 8 is thrown against the front parallelogram side 14 of the milling frame 3 designed as an impact body. Since the parallelogram side 14 is coated with polyester powder, the snow easily slides downwards and is distributed in front of the front edge 15 of the milling frame 3. Because of the frame heel of the milling frame 3 shown in FIG. 5, the snow also flows off very well in the outer frame areas, without there being an edge wall formation of the milled snow at the lateral ends 5 and 6 of the milling frame 3.
  • the droplet shape of the ribs 23 of the front transverse row 33 also compresses the snow in the lateral direction.
  • the plate-like compliant part 22 with its second transverse row 34 and third transverse row 35 ensures a final smoothing even when the terrain is relatively hilly.
  • the foremost transverse row 23 of the ribs 23 is usually exposed to the greatest wear.
  • these ribs 23 are made of spring steel or have been made wear-resistant in some other way, a substantially uniform wear of the smoothing device 19 is achieved, even if the snow blower is deeply immersed in hard snow.
  • the smoothing device 19 does not necessarily have to be connected to a snow blower. It can also be attached to a so-called smoothing board.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Soil Working Implements (AREA)
  • Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Shovels (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Road Repair (AREA)
  • Connection Of Plates (AREA)
  • Harvester Elements (AREA)

Claims (23)

1. Fraiseuse de neige (1) pour le montage à l'arrière d'un véhicule de piste, comprenant un arbre porte-fraise (7, 8) et un cadre de fraise (3) qui présente une section transversale au moins triangulaire et s'étend sur la largeur de la fraiseuse de neige (1 et aux extrémités latérales (5, 6) duquel sont vissés des boucliers latéraux (37) avec des paliers pour l'arbre porte-fraise, caractérisée en ce qu'aux extrémités latérales (5, 6) du cadre de fraise (3) sont disposées, respectivement dans un plan de section transversale, des barrettes (44, 45) dépassant de deux surfaces (14, 24) du cadre et montées en V; et que du côté (38) de chaque bouclier latéral (37) dirigé vers le cadre de fraise (3) sont fixées deux baguettes crochues (39, 40) disposées en V qui, à l'état monté du bouclier latéral (37), passent derrière les barrettes (44, 45) du cadre de fraise (3), les baguettes crochues (39, 40) du bouclier latéral formant un raccord boulonné à engagement positif avec une vis de retenue (51) agissant sur le cadre de fraise (3).
2. Fraiseuse de neige selon la revendication 1, caractérisée en ce que l'axe de la vis de retenue (51) est orienté sensiblement dans la direction de la bissectrice des deux barrettes (39, 40).
3. Fraiseuse de neige selon l'une des revendications 1 ou 2, caractérisée en ce que, lorsque le bouclier latéral (37) est mis en place, les baguettes crochues (39, 40) entourent les barrettes (44, 45) par l'extérieur, et que la vis (51) est montée sur le cadre de fraise (3) à distance des surfaces (14, 24) dudit cadre de fraise.
4. Fraiseuse de neige selon au moins l'une des revendications 1 à 3, caractérisée en ce que sur le côté du cadre de fraise (3) est disposée une poche d'emboîtement (46) pour le bouclier latéral (37) qui s'ouvre en direction des barrettes (44, 45) en forme de V, la vis de retenue (51) attaquant le bouclier latéral (37) au travers de la poche d'emboîtement (46) et étant conformée en vis de tension.
5. Fraiseuse de neige selon au moins l'une des revendications 1 à 4, caractérisée en ce que latéralement sur le cadre de fraise (3) est monté un couvercle de fermeture (43) également triangulaire qui dépasse de l'aire de la section transversale du cadre de fraise (3).
6. Fraiseuse de neige selon au moins l'une des revendications 1 à 5, caractérisée en ce qu'à l'extrémité du bouclier latéral (37) dirigée vers la poche d'emboîtement (46) est pliée une patte d'emboîtement (41) correspondante sur laquelle est fixé un écrou (42).
7. Fraiseuse de neige selon au moins l'une des revendications 1 à 6, caractérisée en ce que le cadre de fraise (3) est conformé en corps de rebondissement, et que les bords latéraux (5, 6) montent respectivement à partir du milieu du cadre de fraise (3).
8. Fraiseuse de neige selon au moins l'une des revendications 1 à 7, caractérisée en ce que le cadre de fraise présente une surface de cadre de fraise (13) dirigée vers la piste et dans les bords (15, 16) de laquelle sont usinées deux rainures de fixation (17, 18) pour la réception d'un dispositif de lissage (19).
9. Fraiseuse de neige selon au moins l'une des revendications 1 à 8, caractérisé en ce que le dispositif de lissage (19) est équipé d'un élément antérieur (21) présentant une section triangulaire et fixé sur le cadre de fraise (3) le long d'un premier côté de triangle, dont le second côté (29) du triangle est dirigé à partir du cadre de fraise (3) vers la piste et vers l'arrière et conformé en surface de compactage rigide, et qui est rattaché à son extrémité arrière à un élément souple (22) en forme de plaque, l'élément souple (22) s'étendant à l'état non chargé sensiblement parallèlement au second côté (29) du triangle et sensiblement horizontalement à l'état chargé, tandis qu'un troisième côté (30) du triangle est conformé en support s'étendant de l'extrémité arrière du second côté (29) du triangle au cadre de fraise (3).
10. Fraiseuse de neige selon au moins l'une des revendications 1 à 9, caractérisée en ce qu'au moins une rangée transversale (33, 34, 35) de nervures (23) en forme de bourrelets s'étendant longitudinalement dans le sens de la marche A est disposée sur le côté du dispositif de lissage (19) dirigé vers la piste (B).
11. Fraiseuse de neige selon au moins la revendication 10, caractérisée en ce qu'une première rangée transversale (33) de nervures (23) est disposée à la face inférieure d'une barrette (36) et s'étend jusqu'au second côté avant (29) du triangle de l'élément rigide (21).
12. Fraiseuse de neige selon au moins l'une des revendications 1 à 11, caractérisée en ce que la première rangée transversale (33) de nervures (23) est réalisée à partir d'un matériau dur et résistant à l'usure.
13. Fraiseuse de neige selon au moins l'une des revendications 1 à 12, caractérisée en ce que les rangées transversales (34, 35) placées en arrière dans le sens de la marche sont constituées d'un matériau tendre.
14. Fraiseuse de neige selon au moins l'une des revendications 1 à 13, caractérisée en ce que le dispositif de lissage (19) est réalisé en polyuréthane.
15. Fraiseuse de neige selon au moins l'une des revendications 1 à 14, caractérisée en ce que dans les nervures (23) de la première rangée transversale (33) sont incorporées des particules de corindon.
16. Fraiseuse de neige selon au moins l'une des revendications 1 à 15, caractérisée en ce que les nervures (23) de la première rangée transversale (33) sont recouvertes, en direction de la piste, par une tôle en acier à ressorts (55).
17. Fraiseuse de neige selon au moins la revendication 16, caractérisée en ce que la tôle en acier à ressorts (55) est vissée sur le dispositif de lissage (19).
18. Fraiseuse de neige selon au moins l'une des revendications 16 ou 17, caractérisée en ce que la tôle en acier à ressorts (55) est engagée, conjointement avec le dispositif de lissage (19), dans la rainure de fixation antérieure (17) du cadre de fraise (3).
19. Fraiseuse de neige selon au moins l'une des revendications 1 à 18, caractérisée en ce que la tôle en acier à ressorts constitue seule le second côté (29) du triangle du dispositif de lissage (19) incliné vers la piste et vers l'arrière, et qu'elle est rattachée à son extrémité arrière à l'élément souple (22) en forme de plaque.
20. Fraiseuse de neige selon au moins l'une des revendications 1 à 19, caractérisée en ce que les nervures (23) de la première rangée transversale (33) sont conformées en saillies métalliques équipées de pièces d'ancrage de fixation (54), qui sont coulées avec leurs pièces d'ancrage de fixation (54) dans le dispositif de lissage (19).
21. Fraiseuse de neige selon au moins l'une des revendications 1 à 20, caractérisée en ce que les nervures (23) sont sensiblement conformées en gouttes.
22. Fraiseuse de neige selon au moins l'une des revendications 1 à 21, caractérisée en ce que les nervures (23) sont conformées de telle façon qu'une partie plus pointue (52) est dirigée dans le sens de la marche et que la partie (53) qui y fait suite s'élargit dans la direction opposée au sens de la marche.
EP86112123A 1985-12-24 1986-09-02 Fraiseuse de neige Expired - Lifetime EP0226711B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112123T ATE55438T1 (de) 1985-12-24 1986-09-02 Schneefraese.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8536530U 1985-12-24
DE8536530U DE8536530U1 (de) 1985-12-24 1985-12-24 Schneefräse

Publications (3)

Publication Number Publication Date
EP0226711A2 EP0226711A2 (fr) 1987-07-01
EP0226711A3 EP0226711A3 (en) 1988-06-08
EP0226711B1 true EP0226711B1 (fr) 1990-08-08

Family

ID=6788615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112123A Expired - Lifetime EP0226711B1 (fr) 1985-12-24 1986-09-02 Fraiseuse de neige

Country Status (7)

Country Link
US (1) US4726129A (fr)
EP (1) EP0226711B1 (fr)
JP (1) JP2691152B2 (fr)
AT (1) ATE55438T1 (fr)
CA (1) CA1267021A (fr)
DE (2) DE8536530U1 (fr)
YU (1) YU147486A (fr)

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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
DE9217472U1 (de) * 1992-12-21 1993-02-25 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Pistenpflegevorrichtung
US5662256A (en) * 1993-05-25 1997-09-02 Bryan; Ken John Bicycle rack
CA2394621C (fr) 1999-12-17 2008-09-23 Bombardier Inc. Dameuse munie d'un ensemble fraise a neige a geometrie variable ameliore
US7676964B2 (en) * 2001-11-12 2010-03-16 Agri-Cover, Inc. Snow plow having wear minimizing apparatus
US7627965B2 (en) * 2001-11-12 2009-12-08 Agri-Cover, Inc. Plow blade having integrally formed attachment channel
US7676963B2 (en) * 2001-11-12 2010-03-16 Agri-Cover, Inc. Snow plow including mold board having back plate
US7681335B2 (en) * 2001-11-12 2010-03-23 Agri-Cover, Inc. Snow plow having attachable biasing member
US7676962B2 (en) 2001-11-12 2010-03-16 Agri-Cover, Inc. Snow plow having reinforced mold board
US7735247B2 (en) * 2001-11-12 2010-06-15 Agri-Cover, Inc. Snow plow for all terrain vehicle
US6817118B2 (en) * 2001-11-12 2004-11-16 Charles M. Schmeichel Self-adjusting snow plow
US7735245B2 (en) * 2001-11-12 2010-06-15 Agri-Cover, Inc. Snow plow having catch structure
US7669353B2 (en) * 2001-11-12 2010-03-02 Agri-Cover, Inc. Snow plow having hitch tongue connecting member
US8875419B2 (en) 2001-11-12 2014-11-04 Agri-Cover, Inc. Snow plow
US7707753B2 (en) * 2001-11-12 2010-05-04 Agri-Cover, Inc. Multifunctional plow blade positioning apparatus and method
US7784199B2 (en) * 2001-11-12 2010-08-31 Agri-Cover, Inc. Snow plow having pivotal mounting apparatus
US7743534B2 (en) * 2001-11-12 2010-06-29 Agri-Cover, Inc. Snow plow having two-piece mold board
US8037625B2 (en) 2003-03-31 2011-10-18 Agri-Cover, Inc. Snow plow having pivotal mounting apparatus
US20060081381A1 (en) * 2004-09-07 2006-04-20 Kassbohrer All Terrain Vehicles, Inc. Material handling apparatus
DE102009049900B4 (de) * 2009-10-13 2011-07-28 Kässbohrer Geländefahrzeug AG, 88471 Geschlepptes Pistenbearbeitungsgerät
RU2496468C2 (ru) * 2012-01-11 2013-10-27 Владимир Николаевич Иванов Зубная паста, содержащая смесь лизатов бактерий
IT201900002017A1 (it) * 2019-02-12 2020-08-12 Prinoth Spa Fresa da neve per la preparazione di piste da sci
CA214952S (en) * 2021-12-29 2024-05-06 Prinoth Spa Tooth for snow tiller
DE102022208544A1 (de) * 2022-08-17 2024-02-22 Kässbohrer Geländefahrzeug Aktiengesellschaft Finisheranordnung und Pistenbearbeitungsgerät
USD1040865S1 (en) * 2024-03-20 2024-09-03 Wilburn B. Lancaster Lawn mower shroud openings

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CA964055A (en) * 1972-11-16 1975-03-11 Bombardier Limited Snowmobile trail groomer
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CH574255A5 (fr) * 1974-08-28 1976-04-15 Baechler Anton R
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IT1134059B (it) * 1979-11-06 1986-07-24 Kempf & Co Ag Dispositivo per la preparazione di piste da sci
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Also Published As

Publication number Publication date
ATE55438T1 (de) 1990-08-15
JP2691152B2 (ja) 1997-12-17
DE3673360D1 (de) 1990-09-13
US4726129A (en) 1988-02-23
CA1267021A (fr) 1990-03-27
JPS62160307A (ja) 1987-07-16
EP0226711A3 (en) 1988-06-08
EP0226711A2 (fr) 1987-07-01
DE8536530U1 (de) 1986-04-24
YU147486A (en) 1988-02-29

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