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US 4,900,382 AGranted
Method for monitoring application of tread stock to a tire carcass
AssigneeCooper Tire & Rubber Company
InventorKarl W. Klose
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AssigneeCooper Tire & Rubber Company
InventorKarl W. Klose
Estimating the term…
A method is provided for monitoring proper application of a length of tread stock to the periphery of a green tire carcass. The tread stock has an outer face with a centering mark defined along the length of the outer face. The stock is affixed to the green tire carcass in a supposed centered position to form an assembled green tire, and the assembled green tire is supported for rotation. A wheel having a pair of annular ridges or grooves on its peripheral surface is positioned in contact with the green tire, and the green tire and wheel are mutually counterrotated. The ridges or grooves are positioned on the wheel spaced equidistantly from the centerline of the green tire, so that counterrotation of the green tire and wheel cause the ridges or grooves to impress alignment marks into the tread stock on each side of the central groove. The spacing between the alignment and centering marks provides a qualitative and quantitative appraisal of the positioning of the tread stock on the green tire carcass, and when such alignment variations exceed specifications, the variation is readily ascertainable and the subject green tire may be rejected.
A method of monitoring the alignment of a length of tread stock applied to the periphery of an annular green tire carcass to form a green tire assembly, the tread stock having sufficient length to permit the opposite ends to be spliced so as to define an exposed outer face and an inner face, wherein the inner face defines an inner circumference, the green tire carcass having an outer circumference substantially equal to the inner circumference of the tread stock to engage the inner face of the tread stock, the outer face of the tread stock including a centering mark defined along the length of the tread stock, said method comprising the steps of:
A method of checking for proper alignment in application of a tread stock and belt package to the periphery of a green tire carcass, the tread stock having an outer face with a centering mark defined along the length of the package, comprising the steps of:
Dependencies are inferred from the claim text.