| 摘要 |
A steel edge of a ski such as alpine ski, cross-country ski, off-slope ski and also a snowboard solves the problem of guiding in turns and sliding on various types of slopes, soft, hard packed or icy. The steel edge is provided on the side of an undersurface (3) with a groove (10) having in the cross-section a shape of an arch (10'), a cross-section (11) of which, that leans to a lateral surface (12) of the steel edge (1), is flat and in contact with it in a sharp angle alpha , with which it forms a sharp edge (13) of the steel edge (1), whereby the angle alpha continuously changes and amounts in the area of the central part (6) of a ski (4) approximately 45 DEG and then continuously increases up to 90 DEG towards a shovel (5) and a tail (7) and namely before the shovel (5) and the tail (7) when it passes to a flat surface lying in the surface of the undersurface (3) of the ski (4) or a snowboard.
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