Apparatus for resurfacing a snow layer
First Claim
1. Apparatus for the resurfacing of a snow layer, said apparatus being of the type for connection to a tractor, having rollers for compacting the snow, and having a plurality of scrapers arranged side by side and having pivots for pivoting said scrapers vertically about an axis which is adjustable in height,the improvement therein comprising that in the direction of movement of said apparatus said scrapers are arranged in front of said rollers, that the pivots of said scrapers are disposed immediately adjacent the front of a horizontally oriented main frame which is supported at its rear end on said rollers, and that a draw bar is attached to the front of said main frame by means of a pivotable horizontal shaft for connecting said machine to a tractor, said draw bar and said main frame also being connected to an adjustment member which is adjustable in length to alter the degree of slant of said draw bar to the plane of said main frame.
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Accused Products
Abstract
The disclosed apparatus is a machine of the type for connection to a snow skiing course maintenance tractor. It has freely-rolling rollers for compacting the snow and a plurality of scrapers arranged side by side. The scrapers are pivoted vertically about an axis which is adjustable in height. The scrapers are arranged in front of the rollers.
Also disclosed is such a machine with combinations of scrapers and rollers arranged on side by side sub-frames which are connected together by a linkage. When one of the sub-frames is tilted in one direction, the other sub-frame is caused by the linkage to tip in the opposite direction. Means are disclosed for utilizing only one of the sub-frames alone.
17 Citations
6 Claims
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1. Apparatus for the resurfacing of a snow layer, said apparatus being of the type for connection to a tractor, having rollers for compacting the snow, and having a plurality of scrapers arranged side by side and having pivots for pivoting said scrapers vertically about an axis which is adjustable in height,
the improvement therein comprising that in the direction of movement of said apparatus said scrapers are arranged in front of said rollers, that the pivots of said scrapers are disposed immediately adjacent the front of a horizontally oriented main frame which is supported at its rear end on said rollers, and that a draw bar is attached to the front of said main frame by means of a pivotable horizontal shaft for connecting said machine to a tractor, said draw bar and said main frame also being connected to an adjustment member which is adjustable in length to alter the degree of slant of said draw bar to the plane of said main frame.
Specification