# US 2008/0184602 A1 · Piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0184602 A1 - Document ID: US20080184602A1 - Status: Published application - Kind: A1 - Application number: 11/986,020 - Filed: 2007-11-19 - Published: 2008-08-07 - Earliest claimed: 2006-11-23 - Assignees: Kaessbohrer Gelaendefahrzeug AG - Inventors: Scott A. WESTMONT; Franz BEER; Gerd FRIEDMANN; Hans-Martin NUSSER - Web page: https://patentgrep.com/patent/US20080184602A1 ## CPC - E01H 4/02: for sporting purposes, e.g. preparation of ski trails; {Construction of artificial surfacings for snow or ice sports (construction of ice skating rinks E01C13/102); Trails specially adapted for on-the-snow vehicles}, e.g. devices adapted for ski-trails (production of snow or ice for winter sports or similar recreational purposes F25C3/00) - E01H: STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING {OR PREVENTING} FOG IN GENERAL {CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS}(cleaning in general B08B) ## Abstract A piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle, includes a cutter support which can be adjusted relative to the motor vehicle about a plurality of axes and which has a cutting shaft arrangement that is arranged rotatably in an impact housing. A smoothing mechanism is arranged—as seen in the forward direction of travel of the motor vehicle—behind the cutting shaft arrangement and is held in an adjustable manner. The impact housing and the cutting shaft arrangement are held on the cutter support in a manner such that they can be adjusted about a pivot axis which—as seen in the forward direction of travel of the motor vehicle—lies behind an axis of rotation of the cutting shaft arrangement. ## Claims ### Claim 1 Piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle, with a cutter support which can be adjusted relative to the motor vehicle about a plurality of axes and has a cutting shaft arrangement which is arranged rotatably in an impact housing, and with a smoothing mechanism which—as seen in the forward direction of travel of the motor vehicle—is arranged behind the cutting shaft arrangement and is held in an adjustable manner by means of at least one adjusting means, wherein the impact housing and the cutting shaft arrangement are held on the cutter support in a manner such that they can be adjusted about a pivot axis which—as seen in the forward direction of travel of the motor vehicle—lies behind an axis of rotation of the cutting shaft arrangement. ### Claim 2 (depends on 1) Piste grooming apparatus according to claim 1, wherein the cutter support comprises two longitudinal members which extend at least approximately in the longitudinal direction of the vehicle, engage over the impact housing and are connected to each other on the end sides by a cross member. ### Claim 3 (depends on 2) Piste grooming apparatus according to claim 2, wherein the cross member is assigned a support unit of the smoothing mechanism, which support unit is provided with the adjusting means for adjusting the smoothing mechanism. ### Claim 4 (depends on 3) Piste grooming apparatus according to claim 3, wherein the support unit of the smoothing mechanism comprises at least one supporting arm which is mounted on the cross member in the manner of a rocker and which is assigned the at least one adjusting means. ### Claim 5 (depends on 1) Piste grooming apparatus according to claim 1, wherein the cutter support is assigned at least one oscillation damper which is arranged between a central coupling region, by means of which the piste grooming apparatus can be connected to the motor vehicle, and the cutter support. ### Claim 6 (depends on 5) Piste grooming apparatus according to claim 5, wherein in that two oscillation dampers flanking the coupling region in a mirror-symmetrical manner are provided. ### Claim 7 (depends on 6) Piste grooming apparatus according to claim 6, wherein in that the oscillation dampers are designed in a manner such that they act hydraulically. ### Claim 8 (depends on 5) Piste grooming apparatus according to claim 5, wherein the oscillation dampers are designed in a manner such that they act hydraulically. ### Claim 9 Piste grooming apparatus for a motor vehicle, in particular a track-laying vehicle, with a cutter support which can be adjusted relative to the motor vehicle about a plurality of axes and has a cutting shaft arrangement which is arranged rotatably in an impact housing, and with a smoothing mechanism which—as seen in the forward direction of travel of the motor vehicle—is arranged behind the cutting shaft arrangement and is held in an adjustable manner by means of at least one adjusting means, wherein the cutter support is assigned at least one oscillation damper which is arranged between a central coupling region, by means of which the piste grooming apparatus can be connected to the motor vehicle, and the cutter support.