Back to results
US 11,027,508 B2Granted
Method for retreading a tire casing using a roller
AssigneesCompagnie Generale Des Etablissements Michelin, Michelin Recherche et Technique S.A.
InventorJose Merino Lopez
Life of this patent
Estimating the term…
Abstract
A method of retreading a tire casing includes the step of disposing a cured rubber tread on a carcass with a layer of hot-melt material interposed between the tread and the carcass. The method continues with the step of rollering the tread by means of at least one roller with a width (r) that is less than a width (b) of the tread.
Claims10
A method of retreading a tire casing, comprising the steps of;
- disposing a cured rubber tread in the form of a closed ring on a carcass with a layer of hot-melt material interposed between the tread and the carcass, and
- rollering the tread by means of at least one roller with a width that is less than a width of the tread, a part of the layer of hot-melt material being heated locally at points just before the rollering without other parts of the hot-melt material being heated.
A method of retreading a tire casing, comprising the steps of;
- disposing a cured rubber tread in the form of a closed ring on a carcass with a layer of hot-melt material interposed between the tread and the carcass, and
- rollering the tread by means of at least one roller with a width that is less than a width of the tread, a part of the layer of hot-melt material being heated locally at points just before the rollering without other parts of the hot-melt material being heated, and
- wherein the heating step comprises creating a space between an edge of the tread and the carcass by means of a frustoconical tool located at said points just before the rollering, the space being created by lifting the tread or by pressing the carcass and wherein the heating of the hot-melt material includes projecting hot air into the space through a conical nozzle.
Dependencies are inferred from the claim text.