Abstract: A snow tiller (10) suitable for grooming ski hills, trails, or other areas, provides an adjustable profile tiller assembly. The snow tiller (10) is preferably pulled by a tracked vehicle (12) and has a tiller assembly formed of a plurality of tiller subassemblies (56,58). By varying the respective orientation of the tiller subassemblies (56,58), the snow tiller (10) can selectively provide coactive, level, convex, or more complex snow profiles depending upon the tiller configuration, snow conditions, and the intended uses. The snow tiller (10) also provides a control system to substantially maintain a selected snow profile while selectively permitting individual tiller subassemblies to float, thereby reducing the possibility of damage. The assembly can simultaneously provide an automatic release mode to protect the equipment from damage.

Abstract: A snow tiller (10) suitable for grooming ski hills, trails, or other areas, provides an adjustable snow housing assembly. A snow chamber (70) is formed between a ground shaping element (48) that has a rotatable drum (50) and a trailing finishing element (62) that is supported by a trailing bar bracket (84, 110, 130). The shape and/or volume of the snow chamber (70) can be adjusted by activating a finisher positioning mechanism (72), such as a hydraulic cylinder, to pivot the trailing bar bracket (84, 110, 130). A pair of connecting bars (98 and 100) from a pivot point about which the trailing bar bracket (84, 110, 130) pivots in an arc with respect to the snow surface, thus providing for precise positional control of the snow chamber (70).

Abstract: A snow tiller (10) suitable for grooming ski hills, trails, or other areas, provides an adjustable profile tiller assembly. The snow tiller (10) is preferably pulled by a tracked vehicle (12) and has a tiller assembly formed of a plurality of tiller subassemblies (56, 58). By varying the respective orientation of the tiller subassemblies (56, 58), the snow tiller (10) can selectively provide concave, level, convex, or more complex snow profiles depending upon the tiller configuration, snow conditions, and the intended uses. The snow tiller (10) also provides a control system to substantially maintain a selected snow profile while selectively permitting individual tiller subassemblies to float, thereby reducing the possibility of damage. The assembly can simultaneously provide an automatic release mode to protect the equipment from damage.