Optimized Metal Drive Roller
AssigneeCompagnie Generale Des Etablissements Michelin
InventorsYves POTIN, Matthieu PELISSE, Guillaume HENNEBERT
Life of this patent
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Abstract
Metal drive roller (1) for a light vehicle provided with a bicycle wheel, such as a bicycle or a wheelchair, having a frustoconical usable outer load-bearing surface (31, 32), the usable outer load-bearing surface (31, 32) having a plurality of indenting elements (4) having a radial height (hr) of between 0.5 mm and 5 mm, a mean circumferential length lc, a maximum axial width lam, and ending with a sharp point, the indenting elements (4) covering at least 80% of the usable outer load-bearing surface (31, 32). The projections of the sharp points of the indenting elements (4) perpendicular to the axis of rotation (2) onto the axis of rotation (2) are substantially equally distributed.
Claims11
A metal drive roller comprising:
- an axis of rotation,
- a frustoconical outer load-bearing surface comprising one or more usable outer load-bearing surfaces arranged between two circumferential planes,
- the one or more usable outer load-bearing surfaces comprising a plurality of indenting elements
- the indenting elements having a radial height (hr) of between 0.5 mm and 5 mm, a mean circumferential length lc, a maximum axial width lam, and ending with a sharp point, the indenting elements covering at least 80% of each usable outer load-bearing surface,
- wherein, for each usable outer load-bearing surface, the orthogonal projections of the sharp points of the indenting elements onto the axis of rotation of the roller are substantially equally distributed on the axis of rotation of the roller.
Dependencies are inferred from the claim text.