Ski grinding machine
AssigneeSKID, societe anonyme
InventorJean-Pierre Bocquet
Life of this patent
Estimating the term…
Abstract
The machine according to the invention consists of an abrasive belt 6 stretched between a support drum 3 and a return drum 5, this assembly being rotated by a motor 7 accommodated between support drum 3 and return drum 5 between the two lengths 61, 62 of abrasive belt that link the drums. Support drum 3 consists of at least two sections with different hardnesses, namely a section with a rigid peripheral surface for dry grinding and a section with an elastic peripheral surface for initial machining or surface polishing. A driving drum may be placed above support drum 3 for the motorized feeding of the ski.
Claims14
Ski grinding machine for grinding a surface of a ski having a width comprising:
- a frame standing on a floor,
- a support drum mounted rotatably around a first horizontal axis, forming an accessible support area to accommodate the surface of the ski to be ground,
- a return drum mounted rotatably around a second horizontal axis,
- an abrasive belt stretched between the support drum and the return drum,
- tensioning means to pull at least one of the drums away from the other drum and to tension the abrasive belt,
- driving means to rotate the support drum and the abrasive belt,
- water circulation means to spray water onto the area of the abrasive belt around the support drum and to collect water that flows on the abrasive belt,
- the support drum comprises at least one first longitudinal section, which includes a circumferential surface of the drum, and one second longitudinal section, which includes a circumferential surface of the drum, side-by-side with and extending longitudinally away from the first section, the first and second sections each longer than the width of an said alpine ski and having different surface hardnesses, the first section with an elastic surface having a peripheral area comprising an elastic material for performing a first grinding operation on the surface of the ski and the second section with a rigid surface having a peripheral area comprising a rigid material aluminum for performing a second grinding operation on the surface of the ski,
- the abrasive belt simultaneously covers all sections of the support drum,
- driving means positioned in order to rotate the support drum at least two different appropriate speeds corresponding, respectively, to a first initial machining or flattening process where the surface of the ski is ground at a high belt speed and a second finishing process where the surface of the ski is ground at a low belt speed, and
- the return drum having means of centering the abrasive belt to guide said abrasive belt and hold it close to a position that is essentially centrally aligned with the return drum and the support drum.
Dependencies are inferred from the claim text.