EP0648899A2 - Appareil pour l'entretien des pistes - Google Patents

Appareil pour l'entretien des pistes Download PDF

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Publication number
EP0648899A2
EP0648899A2 EP94104317A EP94104317A EP0648899A2 EP 0648899 A2 EP0648899 A2 EP 0648899A2 EP 94104317 A EP94104317 A EP 94104317A EP 94104317 A EP94104317 A EP 94104317A EP 0648899 A2 EP0648899 A2 EP 0648899A2
Authority
EP
European Patent Office
Prior art keywords
milling
bearing
smoothing
bearings
milling tools
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
EP94104317A
Other languages
German (de)
English (en)
Other versions
EP0648899B1 (fr
EP0648899A3 (fr
Inventor
Walter Hang
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.)
Kaessbohrer Gelaendefahrzeug AG
Original Assignee
Kassbohrer Gelandefahrzeug Fahrzeugtechnik fur Umweltpflege Natur und Freizeit GmbH
Karl Kaessbohrer Fahrzeugwerke GmbH
Kaessbohrer Gelaendefahrzeug 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 Kassbohrer Gelandefahrzeug Fahrzeugtechnik fur Umweltpflege Natur und Freizeit GmbH, Karl Kaessbohrer Fahrzeugwerke GmbH, Kaessbohrer Gelaendefahrzeug GmbH filed Critical Kassbohrer Gelandefahrzeug Fahrzeugtechnik fur Umweltpflege Natur und Freizeit GmbH
Publication of EP0648899A2 publication Critical patent/EP0648899A2/fr
Publication of EP0648899A3 publication Critical patent/EP0648899A3/fr
Application granted granted Critical
Publication of EP0648899B1 publication Critical patent/EP0648899B1/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 invention relates to a device for piste grooming and for attachment to a towing vehicle with a supporting frame oscillating about a longitudinal axis lying in the direction of travel, with which at least two milling frames, each equipped with milling tools, are connected via pendulum bearings, behind which one extends at least over the working width of the milling tools Smoothing device is arranged.
  • Such a device for slope grooming is known from German utility model G 9217472.
  • two milling tools are arranged side by side and a smoothing board is arranged downstream of them as a smoothing device.
  • the support frame is formed from cross members and longitudinal members, the milling tools being pivoted at the ends of the longitudinal members located at the front in the direction of travel via pendulum bearings by means of corresponding milling frames.
  • the smoothing board is mounted on the rear ends of the side members. A direct connection of milling tools and smoothing board is not available in the previously known device.
  • the object of the invention is to improve the previously known device in such a way that uniform slope processing takes place independently of downhill or uphill travel.
  • the self-aligning bearing allows each milling tool to pivot about a specific axis parallel to the longitudinal axis of the device.
  • the device is adapted to a waviness of the slope surface transverse to the longitudinal axis.
  • the rear bearing enables the relative height positioning of the smoothing device and milling tools to be fine-tuned. In this way, the milling tools and smoothing device correlate with each other to a certain undulation of the slope.
  • the special storage of the smoothing device automatically adjusts the working depth of milling tools and smoothing device.
  • the swiveling movements of the two milling tools are correlated with one another by the smoothing device essentially lying on the slope surface, so that the movement is averaged and the snow treatment is more uniform overall.
  • the smoothing device In order to additionally mount the smoothing device so that it can be pivoted perpendicularly to the slope surface, it is advantageous if the smoothing device is mounted on each rear bearing so as to be pivotable about a substantially horizontal transverse axis. In this way, the smoothing device can at least partially evade larger obstacles.
  • the device according to the invention In order to attach the device according to the invention to a towing vehicle in the usual way, it has a coupling which connects a cross member of the support frame to the towing vehicle in an articulated manner.
  • the cross member is arranged in the direction of travel in front of the milling tools and at its ends the cross member has the self-aligning bearings.
  • the articulated connection can take place, for example, in such a way that the support frame is mounted on the coupling so as to be pivotable about the longitudinal axis and about a substantially horizontal transverse axis.
  • a simple connection of cross member and coupling results from the fact that at least two bearing arms protrude from the cross member in the direction of the coupling with which the cross member is mounted on the coupling.
  • the pivotable mounting about the essentially horizontal transverse axis can be carried out, for example, by the bearing arms, the transverse axis being mounted so as to be pivotable about the longitudinal axis.
  • the crossbeam is curved downwards at its ends and there are bearing bushes designed as self-aligning bearings, in each of which a pivoting pin running approximately in the longitudinal direction is pivotably mounted, which also supports is connected to a corresponding milling frame.
  • the pivot pin can be releasably attached to the milling frame in this context.
  • the oscillating bearing results from turning the pivot pin in the bearing bush.
  • the approx Longitudinal pivot axis of the pivot pin runs at an acute angle to a horizontal back and down and the axes of rotation associated with the milling tools are arranged below the extended pivot axis.
  • the 3-point bearing for the smoothing device it is pivotably mounted on the rear bearings by means of the handlebars projecting from the smoothing device.
  • the handlebars press the smoothing device accordingly onto the slope surface, thus creating a uniform slope surface.
  • the rear bearings can be designed as U-shaped brackets which are detachably fastened to the milling frame and are open at the bottom, the transverse axes running between the U legs. On these transverse axes, the links are pivotally mounted at one of their ends and at their other end on the top of the smoothing device.
  • a bearing eye protrudes upward from the top of the smoothing device and is pivotably mounted in a corresponding receiving opening of the handlebar.
  • the receiving opening can be formed in that two spaced tabs protrude from the handlebar, of which a bolt is held, on which the bearing eye is pivotally mounted.
  • Bearing eye and bolt can form a spherical bearing, so that a length compensation of the smoothing device when swinging around the self-aligning bearing and a limited pivoting of the bearing eyes relative to the bolt is possible.
  • a stabilizing band extends in the longitudinal direction of the smoothing device.
  • This can be designed, for example, as a spring band arranged on the top of the smoothing device, which is located in the extends essentially parallel to the milling tools and at least over their working width.
  • the bearing eyelets protrude upward from the spring band.
  • the bearing eyelets can be formed in one piece with the spring band or releasably attached to it.
  • an end stop for the handlebar is arranged on the rear bearing. Due to its fixed position relative to the milling tools, this defines an exact assignment of these and the smoothing device. In this way, the slope and snow processing is further improved in connection with the 3-point storage.
  • an elastic contact element for the handlebars is arranged on the rear bearing.
  • the maximum deformation of the contact element is determined by the end stop.
  • the self-aligning bearing is arranged centrally between the associated rear bearings. In this way, there is a uniform pivoting movement over the entire working width of milling tools and smoothing device.
  • the support frame has at least one holding device which is connected to the crossmember and on which one end of an actuating cylinder located between the coupling and the support frame is mounted.
  • the device by additional length change of the actuating cylinder positioned in their height position and thus the working depth of the milling tools and the smoothing device can be changed.
  • the milling tools are optionally mounted in a pendulum manner or are locked essentially horizontally.
  • the pendulum storage is used in particular if the natural contour of a terrain is to be maintained when grooming the slopes. If the two milling tools are locked, the runway has an essentially flat surface. This is particularly advantageous in the areas of the slopes where, for example, drag lifts are used.
  • the locking device can be pivoted relative to the cross member by means of an actuating cylinder and can be moved in a controlled manner into or out of the locking position.
  • the locking device has a catching and fixing device for a cam protruding from the respective milling frame.
  • the locking device is pivoted, it is guided by the catching and fixing device, for example, along guides into a position in which the cam is fixed.
  • the locking device is loosened in an analogous manner, in which the cam is released from its fixation and the milling frames are thus pivoted again. In this way, there is simply an automatic locking device for rigid or articulated travel with regard to milling tools and smoothing device.
  • the milling frames are connected to one another at their ends facing one another by a leg correlation device.
  • the stabilizing element of the smoothing device which is designed as a spring band in one embodiment of the invention, it supports the snow-appropriate stabilization of the entire device.
  • the pendulum correlation device is formed by a spring element, such as a flat iron, which correlates the movements of the individual milling frames and protects the propeller shaft from excessive deflections.
  • the spring element can be detachably attached to both milling frames, with its respective ends being inserted, for example, into a link formed in the milling frame.
  • the milling frame has a housing which comprises at least one baffle plate and side skirts.
  • the baffle plate is opposite the milling tools, which are rotatably mounted on the side skirts.
  • the top of the housing can be closed by a mudguard. Such a closed housing on the one hand stiffens the device in the transverse direction and on the other hand prevents excessive deposition of snow.
  • the housing is crescent-shaped in cross-section, being concave on its underside and convex on its top. This rounding-off ensures that the snow slips off the housing in a simple manner and at the same time the snow, harsh, ice, etc. whirled up by the milling tools is deflected back to the slope surface.
  • the rounded top reduces the risk of injury to a user of the device or, for example, to a skier hitting the device.
  • the housing has a cavity in its interior, which extends essentially parallel to the milling tools, the cavity forms a free space in which, for example, the entire supply lines, in particular for the drives of the milling tools, are accommodated.
  • the housing is preferably designed with a smooth surface, so that the snow is supported and the risk of injury is further reduced.
  • the mudguard and the baffle plate are detachably connected to one another.
  • Such a connection can be made, for example, in that two straps protrude from the baffle plate in the direction of travel to the front and rear, by means of which tensioning straps are held over the mudguard.
  • the tabs and bands are preferably arranged at the respective ends of the housing.
  • the straps can be connected to the straps by means of known quick-release fasteners.
  • the milling tools are designed with milling teeth which are helically inclined along their longitudinal direction.
  • the milling teeth extend approximately from the direction of the side skirts
  • the center of each milling tool is arranged in the form of a right-handed spiral and from the center to the drive shaft in the form of a left-handed spiral. This arrangement of the milling teeth ensures that the loosened material is better distributed over the entire working width of the milling tools, in particular in cooperation with the downstream smoothing device. This largely prevents bumps from occurring on the slopes.
  • an additional guide for the material thrown up and loosened by the milling tools is arranged, for example, between the smoothing device and the housings of the milling tools.
  • This guide is preferably designed as a smooth guide band made of metal or plastic that extends over the entire working width of the device.
  • appropriate devices such as side guides, edge wall finishers, snow cover protection or the like can additionally be attached to the device in a conventional manner.
  • the smoothing device can have a plurality of smoothing blades in a known manner at its rear end, which can be pivoted essentially independently of one another. These can have corresponding longitudinal grooves on their underside.
  • the individual milling tools or their housings can be connected to the support frame by means of shock absorber devices, as a result of which the pendulum movement is dampened with respect to the support frame.
  • the device 1 shows a top view of the device 1 according to the invention for attachment to a towing vehicle, not shown.
  • the device 1 comprises one after the other arranged in the longitudinal direction 2 a coupling 17, a union protection 82, a support frame 3, milling tools 6 and 7 and a smoothing device 11.
  • the device 1 is mounted in a height-adjustable manner by means of the coupling 17 on the towing vehicle, not shown.
  • the device is pivoted about the longitudinal axis 2 lying in the direction of travel and is pivotably mounted on the coupling 17 about a transverse axis 80 perpendicular to this.
  • the coupling 17 has a coupling plate 71 which can be detachably fastened to a corresponding device of the towing vehicle, on the rear side of which opposite the towing vehicle a coupling bush 73 projects. In relation to the coupling plate 71, this is mounted so as to oscillate about the longitudinal axis 2. Below the coupling sleeve 73, the support frame 3 is pivotally mounted about the transverse axis 80. This storage takes place on bearing bolts projecting laterally from the coupling bush 73 in the direction of the transverse axis 80.
  • the support frame 3 is mounted by means of two links 21 and 22.
  • the coupling protection 82 is mounted on cross rods 99. These have a number of holding brackets 100 which protrude towards the front in an arc shape and to which deflector surfaces 89 are detachably fastened. Two of these deflector surfaces 89 are arranged on a respective crossbar on two retaining brackets on each side of the coupling 17.
  • the support frame 3 comprises, in addition to the bearing arms 21 and 22 used for mounting on the coupling 17, a cross member 18 which extends at a distance and essentially parallel to the cross bars 99 on both sides of the coupling 17.
  • the cross member 18 has a holding device 42 approximately in the center, which projects substantially upward from the cross member 18 and is connected to the clutch 17 via an actuating cylinder 43.
  • a locking device 45 is arranged in the cross member 18, which is pivotally mounted relative to the cross member 18 by means of a further actuating cylinder 46.
  • self-aligning bearings 4 and 5 are arranged for the oscillating mounting of each milling tool 6 and 7.
  • the self-aligning bearings 4 and 5 have a bearing bush 23 or 24, which extends essentially in the longitudinal direction 2, and a pivot pin 25 or 26, which is mounted in an oscillating manner therein.
  • the milling tools 6 and 7 are each rotatably mounted in a milling frame 8 and 9.
  • the milling frames 8 and 9 each have a front cross tube 75 and a rear cross tube 76, which are spaced apart and extend parallel to the milling tools 6 and 7.
  • the pivot pin 25 or 26 on the milling frame 8 or 9 attached.
  • the cams 48 and 49 protrude from the front cross tubes 75 adjacent to the mutually facing ends 51 and 52 of the milling tools 6 and 7 for locking to the milling tools in the direction of the coupling 17.
  • the front cross tubes 75 are connected to one another in this area by a pendulum correlation device 53. This is formed by a steel strip inserted into a link formed inside the cross tubes 75.
  • shock absorbers 110 and 111 are arranged between the cross member 18 and the milling frame 8 or 9. These are only shown in principle in FIG. 1, wherein one end of the shock absorbers 110 and 111 facing the coupling 17 is mounted on the respective milling frame 8 or 9 and its end facing the self-aligning bearings 4 and 5 is mounted on the cross member 18.
  • the milling frames 8 and 9 have a housing which is described later and which comprises, for example, side skirts 55 and 56. These are arranged on the outer ends of the milling tools 6 and 7 or the milling frames 8 and 9 and cover both the milling tools and the front and rear cross tubes 75 and 76 to the outside.
  • a drive device 68 and 69 for milling tool 6 and 7 is arranged on the side skirts 55 and 56, respectively. These are used for the rotatable mounting of the milling tools.
  • Corresponding side skirts are also arranged on the mutually facing ends 51 and 52 of the milling tools 6 and 7 on the milling frame 8 and 9, respectively.
  • An articulated shaft 50 is releasably attached to these side skirts, which connects the mutually facing ends 51 and 52 of the milling tools 6 and 7 for torque transmission and for length or angle compensation.
  • Each of the milling tools 6 and 7 is formed with a multiplicity of milling teeth 62 which project substantially radially outwards.
  • the milling teeth 62 are inclined relative to the longitudinal direction of the milling tools and form a spiral in their arrangement one behind the other, which is designed to be right-handed from the respective drive device 68 or 69 to the center of each milling tool and left-handed from the center to the cardan shaft 50.
  • rear bearings 12, 13, 14 and 15 are arranged for mounting the smoothing device 11 on the milling frames 8 and 9.
  • the smoothing device 11 is mounted on the milling frames 8 and 9 so as to be pivotable about a corresponding transverse axis 16.
  • Two of the rear bearings 12 and 13 or 14 and 15 together with the associated self-aligning bearings 4 and 5 form a 3-point bearing for the smoothing device 11.
  • the self-aligning bearings 4 and 5 are each centered on the associated rear bearings 12 and 13 or 14 and 15 on the front of the milling frame 8 and 9 respectively.
  • the smoothing device 11 is pivotably mounted on the upper rear bearings 12, 13, 14 and 15 by links 27, 28, 29 and 30 mounted on its upper side.
  • the ends of these links assigned to the smoothing device 11 encompass bearing eyelets 37 which protrude from the top. These are arranged in a region of the smoothing device 11 which extends transversely to the device 1. This continuous area is followed by a large number of smooth sheets 65 projecting from the rear. In the illustrated embodiment, three smoothing sheets are combined to form an integrated unit, which are separated from one another by longitudinal slots 101. Four of these units are arranged on each side of the longitudinal axis 2.
  • the smoothing device 11 extends laterally beyond the working width 10 of the milling tools 6 and 7.
  • a stabilizing or spring band 39 extends over the entire width of the smoothing device 11. This is detachably connected to the smoothing device with a large number of screws.
  • the bearing eyelets 37 are also fastened with the smoothing device 11 in the region of this stabilizing band.
  • FIG. 2 shows the device 1 according to the invention from FIG. 1 in a side view.
  • the same reference numerals designate the same components and are only mentioned in part.
  • the device is mounted so that it can pivot about a longitudinal axis 79 and about a transverse axis 80.
  • the clutch 17 is detachably attached to a corresponding device of a towing vehicle, not shown, by means of the clutch plate 71.
  • the coupling sleeve 73 is pivotally mounted on the coupling plate 71 about the longitudinal axis 79.
  • a holding flange 78 or bearing flanges 103 protrude above and below the coupling bush 73.
  • One end 67 of the actuating cylinder 43 is pivotably mounted on the holding flange 78.
  • Its other end 44 is pivotally mounted on an upper end of the holding device 42.
  • the upper end of the holding device 42 can, for example, have two bearing openings arranged one below the other for the end 44 of the actuating cylinder 43. In the illustrated embodiment, the end 44 is mounted on the lower bearing opening.
  • the bearing flanges 103 serve to rotatably support a transverse axis 80, on which both a lower end of the holding device 42 and the bearing arms 21 and 22 of the cross member 18 are pivotally mounted. Furthermore, the transverse axis 80 is used for mounting transverse rods 99 of the deflector surfaces 89 of the union protection 82 shown in FIG. 1.
  • a bearing arm of the cross member 18 has an end 81 projecting in the direction of the coupling plate 71, on which a front end of the actuating cylinder 46 for the locking device 45 is pivotably mounted.
  • the other end of this actuating cylinder 46 is pivotally mounted on an actuating arm 104 of the locking device 45 bent forward in the direction of the coupling 17 at its upper end.
  • the locking device 45 is pivotally mounted on two, see Fig. 1, projecting in the direction of the milling tool 6 and 7 holding arms 105. In this way, a catching and fixing device 47 of the locking device 45 can be moved in the direction of the cams 48 and 49 by actuating the actuating cylinder 46. In the position of the locking device 45 shown in FIG. 2, the cams 48 and 49 are fixed in the catching and fixing device.
  • the bearing bush 23 is arranged. This extends approximately parallel to the longitudinal axis 79 of the coupling bush 73.
  • a corresponding pivot pin 25 is pivotally mounted in the bearing bush 23.
  • a friction-reducing swivel sleeve 86 is arranged between the swivel pin 25 and the bearing bush 23 concentrically with the swivel pin 25.
  • the pivot pin 25 is held at its front end by means of a screw in the bearing bush 23. At its rear end, the pivot pin 25 is fastened to the milling frame 8 below the front cross tube 75.
  • the pendulum correlation device 53 can be seen in the front cross tube 75.
  • This is essentially designed as a band-shaped flat iron, which extends according to FIG. 1 in the longitudinal direction 1 of the milling tools 6 and 7.
  • the flat iron has a substantially rectangular cross section, the longer sides of the rectangle being essentially parallel to a pendulum axis 88 of the pivot pin 25 and their shorter sides of the rectangle extend substantially perpendicular to this.
  • the pendulum axis 88 extends in extension to the smoothing device 11 at a distance 102 above an axis of rotation 74 of the milling tool 6.
  • the housing 57 of the milling frame 8 has a substantially crescent-shaped cross section.
  • a front end of the housing is formed by the front cross tube 75 and a rear end essentially by the rear cross tube 76.
  • a concavely curved baffle plate 54 extends between the two cross tubes, which is at least partially placed around the front cross tube 75 and extends beyond the rear cross tube 76 in the direction of the smoothing device 11.
  • An upper side 59 of the housing 57 is formed by a protective plate 58 which, together with the baffle plate 54 and side skirts 55 and 56, forms a closed housing 57.
  • the mudguard 58 is essentially convexly curved and has a smooth surface.
  • two tabs are each arranged on the baffle 54, one of which holds a fastening band 90 running over the mudguard 58, see FIG. 1.
  • Corresponding tabs and fastening tapes are arranged on the housing 57 in particular at the respective ends of each milling tool 6 or 7.
  • the fastening tapes 90 can be hooked on and tensioned in a known manner by quick fasteners on the tabs.
  • a strut 77 is arranged adjacent to the rear cross tube 76. This extends between the baffle 54 and mudguard 58 and can extend over the entire length of the housing 57.
  • the rear bearing 12 is shown at the rear end of the housing 57. This is formed by an essentially U-shaped bracket 31 which projects rearward from the housing 57. This is open at the bottom, so that between the U-legs 32 and 33, see FIG. 4, a link 27 is rotatably mounted at one end 34 about the transverse axis 16. The other end 35 of the link 27 is mounted on a bearing eye 37 which projects upwards from the top 36 of the smoothing device 11.
  • a contact element 41 and an end stop 40 are detachably attached to the latter.
  • the end stop 40 projects downward from the U-web of the bracket 31 in the direction of the handlebar 27 and is in contact with the latter in the position of the smoothing device 11 shown in FIG. 2.
  • the contact element 41 is elastic and is compressed when the handlebar 27 is in contact with the end stop 40.
  • a contact element 93 is arranged thereon. With this, the handlebar 27 abuts the housing 57 when the device 1 is lifted off a slope surface 109.
  • the smoothing device 11 has a number of elastic smoothing sheets 65, which can be deflected downward, for example, into the position of the smoothing sheet 65 shown in dashed lines relative to the link 27. Furthermore, a flat guide surface 87 is formed between the housing 57 and the smoothing device 11, which extends over the entire working width of the milling tools 6 and 7 between the latter and the smoothing device 11.
  • the bracket 31 of the rear bearing 12 is fastened to the mudguard 58 by means of a number of screws 92.
  • the attachment takes place in particular in the area between the rear cross tube 76 and stiffening strut 77.
  • the guide surface 87 is at a rear end of the baffle plate 60 forming a pressure bar 95 attached a number of bolts and associated nuts and a mounting bracket 94. The guide surface 87 is held between the fastening strip 94 and the pressure strip 95.
  • the link 27 rests with an essentially flat contact surface 106 on the end stop 40 and on the contact element 41.
  • the contact element 41 is shown in dashed lines in its non-compressed form.
  • the rear surface 107 of the handlebar 27 adjoins the contact surface 106. This extends to its end associated with the bearing eye 37, which is supported by means of a spherical bearing 66 for lateral length compensation and for limited oscillation of the smoothing device 11.
  • the bearing eyelet 37 has at its lower end an eyelet base plate 96 which rests on the stabilizing or spring band 39 of the smoothing device 11 from above and is fastened together with the latter to the guide surface 87 by a number of screws and nuts.
  • the link 27 has a concavely curved front surface 108 which has the contact element 93 at its end assigned to the transverse axis 16 of the rear bearing 12.
  • the milling tool 6 works with respect to the slope surface 109 at a working depth 70.
  • the smoothing device 11 smoothes the material loosened by the milling tool 6 up to this working depth 70 approximately at the level of the original slope surface 109.
  • FIG. 4 shows the rear bearing 12 from FIG. 3 in a rear view.
  • Components corresponding to FIG. 3 are given the same reference numerals and are only mentioned in part.
  • the bracket 31 of the rear bearing 12 is connected to the rear part of the housing 57.
  • the compressed contact element 41 is visible between the bracket 31 and the contact surface 106.
  • the handlebar 27 is similar to the bracket 31 U-shaped.
  • the bearing eye 37 is pivotally mounted between the two U-legs by means of the articulated bearing 66 for lateral length compensation and for oscillating the smoothing device 11.
  • the bearing eyelet is attached to the smoothing device at its lower end by means of the eyelet base plate 96 and a number of screws and nuts.
  • the spring band 39 is held between the smoothing device 11 and the eyelet base plate 96.
  • the end stop 40 shown in FIG. 3 is not shown in FIG. 4 for simplification.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Harvester Elements (AREA)
  • Transplanting Machines (AREA)
  • Golf Clubs (AREA)
  • Milling Processes (AREA)
EP94104317A 1993-10-18 1994-03-18 Appareil pour l'entretien des pistes Expired - Lifetime EP0648899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9315880U 1993-10-18
DE9315880U DE9315880U1 (de) 1993-10-18 1993-10-18 Vorrichtung zur Pistenpflege

Publications (3)

Publication Number Publication Date
EP0648899A2 true EP0648899A2 (fr) 1995-04-19
EP0648899A3 EP0648899A3 (fr) 1995-10-18
EP0648899B1 EP0648899B1 (fr) 1999-06-23

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Application Number Title Priority Date Filing Date
EP94104317A Expired - Lifetime EP0648899B1 (fr) 1993-10-18 1994-03-18 Appareil pour l'entretien des pistes

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EP (1) EP0648899B1 (fr)
AT (1) ATE181581T1 (fr)
CA (1) CA2111135A1 (fr)
DE (2) DE9315880U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29613263U1 (de) * 1996-07-31 1997-12-04 Kaessbohrer Gelaendefahrzeug G Pistenpflegevorrichtung
EP1925746A2 (fr) * 2006-11-23 2008-05-28 Kässbohrer Geländefahrzeug AG Dispositif d'entretien de pistes pour un véhicule automobile, en particulier pour un véhicule à chenilles
US11879221B2 (en) 2018-02-23 2024-01-23 Prinoth S.P.A. Snow tiller and method of adjusting the same

Families Citing this family (1)

* 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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718183A (en) * 1985-10-02 1988-01-12 Karl Kassbohrer Fahrzeugwerke Gmbh Snow tiller
DE9217472U1 (fr) * 1992-12-21 1993-02-25 Karl Kaessbohrer Fahrzeugwerke Gmbh, 7900 Ulm, De

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4718183A (en) * 1985-10-02 1988-01-12 Karl Kassbohrer Fahrzeugwerke Gmbh Snow tiller
DE9217472U1 (fr) * 1992-12-21 1993-02-25 Karl Kaessbohrer Fahrzeugwerke Gmbh, 7900 Ulm, De

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29613263U1 (de) * 1996-07-31 1997-12-04 Kaessbohrer Gelaendefahrzeug G Pistenpflegevorrichtung
EP1925746A2 (fr) * 2006-11-23 2008-05-28 Kässbohrer Geländefahrzeug AG Dispositif d'entretien de pistes pour un véhicule automobile, en particulier pour un véhicule à chenilles
EP1925746A3 (fr) * 2006-11-23 2009-08-05 Kässbohrer Geländefahrzeug AG Dispositif d'entretien de pistes pour un véhicule automobile, en particulier pour un véhicule à chenilles
US11879221B2 (en) 2018-02-23 2024-01-23 Prinoth S.P.A. Snow tiller and method of adjusting the same

Also Published As

Publication number Publication date
EP0648899B1 (fr) 1999-06-23
EP0648899A3 (fr) 1995-10-18
DE59408433D1 (de) 1999-07-29
CA2111135A1 (fr) 1995-04-19
ATE181581T1 (de) 1999-07-15
DE9315880U1 (de) 1994-02-03

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