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US 10,022,930 B2Granted
Method for retreading a tire casing comprising a step of inductive heating
AssigneesCompagnie Generale Des Etablissements Michelin, Michelin Recherche et Technique S.A.
InventorsCedric Astier, Gregory Marcet
Life of this patent
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Abstract
A method for retreading a wheel tire casing: a wheel tire casing is induction heated so as to soften a thermally malleable layer located between a tread of the casing and a carcass of the casing, the tread is removed from the carcass, and another tread is applied to the carcass.
Claims5
A method for retreading a wheel tire casing comprising:
- inductively heating the wheel tire casing so as to soften a thermally malleable layer located between a tread of the casing and a carcass of the casing, then
- removing the tread from the carcass, and then
- applying another tread to the carcass;
- wherein the wheel tire casing further comprises a radially external layer of reinforcing threads inclined with respect to a tire circumferential direction and a radially internal layer of reinforcing threads inclined with respect to the tire circumferential direction, wherein the inductively heating step is performed with an inductor oriented such that the inductor extends along a longitudinal axis, wherein the longitudinal axis is oriented either perpendicular or close to perpendicular to the reinforcing threads of the external layer so as to produce particularly high heating in the reinforcing threads of the external layer and heating of the threads of the internal layer that is much lower in comparison, whereby the longitudinal axis of the inductor is neither parallel nor perpendicular to a main axis about which the wheel tire casing rotates.
1 more element
Dependencies are inferred from the claim text.