Abstract: Ground preparation appliance having a driven working shaft arrangement. Working shaft arrangement. A ground preparation appliance having a driven working shaft arrangement, which is rotatably mounted in a preparation housing that is open towards the ground, is known. According to the invention, the preparation housing has at least two housing envelope portions, which are mounted so as to be displaceable relative to one another in the circumferential direction. Application for rear tillers on trail caterpillars for the purpose of snow surface preparation.

Abstract: Ground preparation appliance having a driven working shaft arrangement. Working shaft arrangement. A ground preparation appliance having a driven working shaft arrangement, which is rotatably mounted in a preparation housing that is open towards the ground, is known. According to the invention, the preparation housing has at least two housing envelope portions, which are mounted so as to be displaceable relative to one another in the circumferential direction. Application for rear tillers on trail caterpillars for the purpose of snow surface preparation.

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.

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.